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<?xml version="1.0" encoding="iso-8859-2"?>
 <reference id="ref.info">
  <title>PHP volby &amp; informace</title>
  <titleabbrev>PHP volby/info</titleabbrev>

  <refentry id="function.assert">
   <refnamediv>
    <refname>assert</refname>
    <refpurpose>Ovit, jestli je vrok neplatn</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Popis</title>
     <methodsynopsis>
      <type>int</type><methodname>assert</methodname>
      <methodparam><type>string|bool</type><parameter>assertion</parameter></methodparam>
     </methodsynopsis>
    <para>
     <function>assert</function> ov pedanou
     <parameter>assertion</parameter> a provede pslunou akci, pokud je
     vsledek &false;.
    </para>
    <para>
     Pokud je pedan <parameter>assertion</parameter> etzec, vyhodnot se
     funkc <function>assert</function> jako PHP kd.
     Vhody etzcov <parameter>assertion</parameter> jsou men reie, kdy
     je kontrola vrok vypnut, a zprvy obsahujc
     <parameter>assertion</parameter> vraz, kdy vrok sele.
    </para>
    <para>
     Kontrola vrok by se mla pouvat jen pro odlaovn skript. Mete je
     pout na kontrolu podmnek, kter by mly bt vdycky &true;, a kter jinak
     indikuj njak chyby v programovn, nebo na kontrolu existence uritch
     vlastnost, jako jsou funkce obsaen v extenzch, nebo urit systmov
     limity a vlastnosti.
    </para>
    <para>
     Vroky by se nemly pouvat pro bn operace jako kontrola vstupnch
     parametr. Jako zkladn pravidlo plat, e v kd by ml fungovat
     sprvn, pokud nen kontrola vrok aktivovna.
    </para>
    <para>
     Chovn funkce <function>assert</function> lze konfigurovat skrze
     <function>assert_options</function> nebo .ini direktivy popsan na
     manulov strnce tto funkce.
    </para>
   </refsect1>
  </refentry>

  <refentry id="function.assert-options">
   <refnamediv>
    <refname>assert_options</refname>
    <refpurpose>Nastavit/zskat rzn pznaky vrok</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Popis</title>
     <methodsynopsis>
      <type>mixed</type><methodname>assert_options</methodname>
      <methodparam><type>int</type><parameter>what</parameter></methodparam>
      <methodparam choice="opt"><type>mixed</type><parameter>value</parameter></methodparam>
     </methodsynopsis>
    <para>
     S pouitm funkce <function>assert_options</function> mete nastavit
     rzn dc volby funkce <function>assert</function>, nebo jen zskat
     jejich souasn nastaven.
    </para>
    <table>
     <title>Volby vrok</title>
     <tgroup cols="4">
      <thead>
       <row>
				<entry>volba</entry>
				<entry>ini parametr</entry>
				<entry>vchoz hodnota</entry>
				<entry>popis</entry>
       </row>
      </thead>
      <tbody>
       <row>
				<entry>ASSERT_ACTIVE</entry>
				<entry>assert.active</entry>
				<entry>1</entry>
				<entry>zapne <function>assert</function> vyhodnocovn</entry>
       </row>
       <row>
				<entry>ASSERT_WARNING</entry>
				<entry>assert.warning</entry>
				<entry>1</entry>
				<entry>vytvo PHP varovn pro kad selhav vrok</entry>
       </row>
       <row>
				<entry>ASSERT_BAIL</entry>
				<entry>assert.bail</entry>
				<entry>0</entry>
				<entry>ukon provdn skiptu, pokud vrok sele</entry>
       </row>
       <row>
				<entry>ASSERT_QUIET_EVAL</entry>
				<entry>assert.quiet_eval</entry>
				<entry>0</entry>
				<entry>
				 vypne error_reporting bhem vyhodnocovn vraz vrok
				</entry>
       </row>
       <row>
				<entry>ASSERT_CALLBACK</entry>
				<entry>assert_callback</entry>
				<entry>(&null;)</entry>
				<entry>uivatelsk funkce, kter se zavol pro kad selhav vrok</entry>
       </row>
      </tbody>
     </tgroup>
    </table>
    <para>
     <function>assert_options</function> vrac pvodn nastaven volby, nebo
     &false; pi chyb.
    </para>
   </refsect1>
  </refentry>

  <refentry id="function.extension-loaded">
   <refnamediv>
    <refname>extension_loaded</refname>
    <refpurpose>zjistit, jestli je extenze naten</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Popis</title>
     <methodsynopsis>
      <type>bool</type><methodname>extension_loaded</methodname>
      <methodparam><type>string</type><parameter>name</parameter></methodparam>
     </methodsynopsis>
    <simpara>
     Vrac &true;, pokud je extenze identifikovan argumentem
     <parameter>name</parameter> natena. Nzvy rznch extenz mete vidt,
     pokud pouijete <function>phpinfo</function>.
    </simpara>
    <para>
     Viz tak <function>phpinfo</function>.
     <note>
      <para>
       Tato funkce byla pidna v PHP 3.0.10.
      </para>
     </note>
    </para>
   </refsect1>
  </refentry>

  <refentry id="function.dl">
   <refnamediv>
    <refname>dl</refname>
    <refpurpose>Nast extenzi PHP za bhu</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Popis</title>
     <methodsynopsis>
      <type>int</type><methodname>dl</methodname>
      <methodparam><type>string</type><parameter>library</parameter></methodparam>
     </methodsynopsis>
    <para>
     Nate extenzi PHP definovanou v <parameter>library</parameter>. Viz tak
     konfiguran direktivu <link linkend="ini.extension-dir">extension_dir</link>.
    </para>
   </refsect1>
  </refentry>

  <refentry id="function.getenv">
   <refnamediv>
    <refname>getenv</refname>
    <refpurpose>Zskat hodnotu systmov promnn</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Popis</title>
     <methodsynopsis>
      <type>string</type><methodname>getenv</methodname>
      <methodparam><type>string</type><parameter>varname</parameter></methodparam>
     </methodsynopsis>
    <para>
     Vrt hodnotu systmov promnn <parameter>varname</parameter>,
     nebo &false; pi chyb.
     <informalexample>
      <programlisting>
$ip = getenv ("REMOTE_ADDR"); // zsk IP adresu uivatele
      </programlisting>
     </informalexample>
    </para>
    <para>
     Seznam vech systmovch promnnch si mete prohldnout pouitm
     <function>phpinfo</function>. Vznam mnoha z nich najdete v
     <ulink url="&url.cgispecs;">CGI specifikaci</ulink>, zvlt na <ulink
     url="&url.cgispec;">strnce o systmovch promnnch</ulink>.
     <note>
      <para>
       Tato funkce nefunguje v ISAPI mdu.
      </para>
     </note>
    </para>
   </refsect1>
  </refentry>

  <refentry id="function.get-cfg-var">
   <refnamediv>
    <refname>get_cfg_var</refname>
    <refpurpose>Zskat hodnotu volby z konfigurace PHP</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Popis</title>
     <methodsynopsis>
      <type>string</type><methodname>get_cfg_var</methodname>
      <methodparam><type>string</type><parameter>varname</parameter></methodparam>
     </methodsynopsis>
    <simpara>
     Vrt souasnou hodnotu konfiguran promnn PHP uren argumentem
     <parameter>varname</parameter>, nebo &false; pokud dojde k chyb.
    </simpara>
    <simpara>
     Nevrac konfiguran hodnoty nastaven pi kompilaci PHP a nete
     konfiguran soubor Apache (pouit php3_configuration_option direktiv).
    </simpara>
    <simpara>
     Pokud chcete zjistit, jestli dan systm pouv
     <link linkend="configuration.file">konfiguran soubor</link>, zkuste
     zskat hodnotu konfiguran volby cfg_file_path. Pokud je tato dostupn,
     pouv se konfiguran soubor.
    </simpara>
   </refsect1>
  </refentry>

  <refentry id="function.get-current-user">
   <refnamediv>
    <refname>get_current_user</refname>
    <refpurpose>Zskat jmno vlastnka souasnho PHP skriptu</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Popis</title>
     <methodsynopsis>
      <type>string</type><methodname>get_current_user</methodname>
      <void/>
     </methodsynopsis>
    <simpara>
     Vrt jmno vlastnka souasnho PHP skriptu.
    </simpara>
    <simpara>
     Viz tak <function>getmyuid</function>,
     <function>getmypid</function>, <function>getmyinode</function>,
     a <function>getlastmod</function>.
    </simpara>
   </refsect1>
  </refentry>

  <refentry id="function.get-magic-quotes-gpc">
   <refnamediv>
    <refname>get_magic_quotes_gpc</refname>
    <refpurpose>Zskat souasn aktivn nastaven magic_quotes_gpc</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Popis</title>
     <methodsynopsis>
      <type>long</type><methodname>get_magic_quotes_gpc</methodname>
      <void/>
     </methodsynopsis>
    <simpara>
     Vrt souasn aktivn nastaven
     <link linkend="ini.magic-quotes-gpc">magic_quotes_gpc</link>.
     (0 pro vypnuto, 1 pro zapnuto).
    </simpara>
    <simpara>
     Viz tak <function>get_magic_quotes_runtime</function>,
     <function>set_magic_quotes_runtime</function>.
    </simpara>
   </refsect1>
  </refentry>

  <refentry id="function.get-magic-quotes-runtime">
   <refnamediv>
    <refname>get_magic_quotes_runtime</refname>
    <refpurpose>Vrtit souasn aktivn nastaven magic_quotes_runtime</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Popis</title>
     <methodsynopsis>
      <type>long</type><methodname>get_magic_quotes_runtime</methodname>
      <void/>
     </methodsynopsis>
    <simpara>
     Vrt souasn aktivn nastaven
     <link linkend="ini.magic-quotes-runtime">magic_quotes_runtime</link>.
     (0 pro vypnuto, 1 pro zapnuto).
    </simpara>
    <simpara>
     Viz tak <function>get_magic_quotes_gpc</function>,
     <function>set_magic_quotes_runtime</function>.
    </simpara>
   </refsect1>
  </refentry>

  <refentry id="function.getlastmod">
   <refnamediv>
    <refname>getlastmod</refname>
    <refpurpose>Zskat as poslen modifikace skriptu</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Popis</title>
     <methodsynopsis>
      <type>int</type><methodname>getlastmod</methodname>
      <void/>
     </methodsynopsis>
    <para>
     Vrt as poslen modifikace souasn strnky. Nvratov hodnota je Unixov
     timestamp, vhodn jako vstup pro <function>date</function>. Pi chyb vrac
     &false;.
     <example>
      <title>getlastmod() pklad</title>
      <programlisting role="php">
// outputs e.g. 'Last modified: March 04 1998 20:43:59.'
echo "Last modified: ".date ("F d Y H:i:s.", getlastmod());
      </programlisting>
     </example>
    </para>
    <para>
     See alse <function>date</function>,
     <function>getmyuid</function>,
     <function>get_current_user</function>,
     <function>getmyinode</function>, and
     <function>getmypid</function>.
    </para>
   </refsect1>
  </refentry>

  <refentry id="function.getmyinode">
   <refnamediv>
    <refname>getmyinode</refname>
    <refpurpose>Zskat inode souasnho skriptu</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Popis</title>
     <methodsynopsis>
      <type>int</type><methodname>getmyinode</methodname>
      <void/>
     </methodsynopsis>
    <para>
     Vrt inode souasnho skriptu, nebo &false; pi chyb.
    </para>
    <para>
     Viz tak <function>getmyuid</function>,
     <function>get_current_user</function>,
     <function>getmypid</function>, and
     <function>getlastmod</function>.
    </para>
    <note>
     <simpara>
			Tato funkce nen podporovna na Windows systmech.
     </simpara>
    </note>
   </refsect1>
  </refentry>

  <refentry id="function.getmypid">
   <refnamediv>
    <refname>getmypid</refname>
    <refpurpose>Zskat process ID PHP</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Popis</title>
     <methodsynopsis>
      <type>int</type><methodname>getmypid</methodname>
      <void/>
     </methodsynopsis>
    <para>
     Vrt process ID souasnho PHP procesu, nebo &false; pi chyb.
    </para>
    <warning>
     <para>
      Process ID nejsou uniktn, a jsou tud slabm zdrojem entropie.
      Nedoporuujeme pouvat PIDy v prostedch zvislch na bezpenosti.
     </para>
    </warning>
    <para>
     Viz tak <function>getmyuid</function>,
     <function>get_current_user</function>,
     <function>getmyinode</function>, a
     <function>getlastmod</function>.
    </para>
   </refsect1>
  </refentry>

  <refentry id="function.getmyuid">
   <refnamediv>
    <refname>getmyuid</refname>
    <refpurpose>Zskat UID majitele PHP skriptu</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Popis</title>
     <methodsynopsis>
      <type>int</type><methodname>getmyuid</methodname>
      <void/>
     </methodsynopsis>
    <simpara>
     Vrt user ID souasnho skriptu, nebo &false; pi chyb.
    </simpara>
    <simpara>
     Viz tak <function>getmypid</function>,
     <function>get_current_user</function>,
     <function>getmyinode</function>, a
     <function>getlastmod</function>.
    </simpara>
   </refsect1>
  </refentry>

  <refentry id="function.getrusage">
   <refnamediv>
    <refname>getrusage</refname>
    <refpurpose>Zskat informace o souasnm vyuit zdroj</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Popis</title>
     <methodsynopsis>
      <type>array</type><methodname>getrusage</methodname>
      <methodparam choice="opt"><type>int</type><parameter>who</parameter></methodparam>
     </methodsynopsis>
    <para>
     Toto je rozhran ke to getrusage(2). Vrt asociativn pole obsahujc
     vechna data vrcen systmovm volnm. Pokud je who 1, getrusage se
     zavol s RUSAGE_CHILDREN.
    </para>
    <para>
     Vechny poloky jsou pstupn skrze sv dokumentovan jmna.
     <example>
      <title>Getrusage pklad</title>
      <programlisting role="php">
$dat = getrusage();
echo $dat["ru_nswap"];         # poet swap
echo $dat["ru_majflt"];        # poet page fault
echo $dat["ru_utime.tv_sec"];  # vyuit uivatelsk as (sekundy)
echo $dat["ru_utime.tv_usec"]; # vyuit uivatelsk as (mikrosekundy)
      </programlisting>
     </example>
     Dal detaily viz man strnka getrusage(2) na vaem systmu.
    </para>
   </refsect1>
  </refentry>

  <refentry id="function.ini-alter">
   <refnamediv>
    <refname>ini_alter</refname>
    <refpurpose>Zmnit hodnotu konfiguran volby</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Popis</title>
     <methodsynopsis>
      <type>string</type><methodname>ini_alter</methodname>
      <methodparam><type>string</type><parameter>varname</parameter></methodparam>
      <methodparam><type>string</type><parameter>newvalue</parameter></methodparam>
     </methodsynopsis>
    <para>
     Zmn hodnotu konfiguran volby, vrt &false; pi
     selhn, a pedchoz hodnotu konfiguran volby pi spchu.
    </para>
    <note>
     <para>
      Toto je alias k <function>ini_set</function>
     </para>
    </note>
    <para>
     Viz tak <function>ini_get</function>,
     <function>ini_restore</function>,
     <function>ini_set</function>
    </para>
   </refsect1>
  </refentry>

  <refentry id="function.ini-get">
   <refnamediv>
    <refname>ini_get</refname>
    <refpurpose>Zskat hodnotu konfiguran volby</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Popis</title>
     <methodsynopsis>
      <type>string</type><methodname>ini_get</methodname>
      <methodparam><type>string</type><parameter>varname</parameter></methodparam>
     </methodsynopsis>
    <para>
     Vrt hodnotu konfiguran volby pi spchu, &false; pi
     selhn.
    </para>
    <para>
     Viz tak <function>ini_alter</function>,
     <function>ini_restore</function>,
     <function>ini_set</function>
    </para>
   </refsect1>
  </refentry>

  <refentry id="function.ini-restore">
   <refnamediv>
    <refname>ini_restore</refname>
    <refpurpose>Obnovit pvodn hodnotu konfiguran volby</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Popis</title>
     <methodsynopsis>
      <type>string</type><methodname>ini_restore</methodname>
      <methodparam><type>string</type><parameter>varname</parameter></methodparam>
     </methodsynopsis>
    <para>
     Obnov pvodn hodnotu konfiguran volby.
    </para>
    <para>
     Viz tak <function>ini_alter</function>,
     <function>ini_get</function>,
     <function>ini_set</function>
    </para>
   </refsect1>
  </refentry>

  <refentry id="function.ini-set">
   <refnamediv>
    <refname>ini_set</refname>
    <refpurpose>Zmnit hodnotu konfiguran volby</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Popis</title>
     <methodsynopsis>
      <type>string</type><methodname>ini_set</methodname>
      <methodparam><type>string</type><parameter>varname</parameter></methodparam>
      <methodparam><type>string</type><parameter>newvalue</parameter></methodparam>
     </methodsynopsis>
    <para>
     Zmn hodnotu konfiguran volby, vrt &false; pi
     selhn, a pedchoz hodnotu konfiguran volby pi spchu.
    </para>
    <para>
     Viz tak <function>ini_alter</function>,
     <function>ini_get</function>,
     <function>ini_restore</function>
    </para>
   </refsect1>
  </refentry>

  <refentry id="function.phpcredits">
   <refnamediv>
    <refname>phpcredits</refname>
    <refpurpose>Vytisknout credits pro PHP</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Popis</title>
     <methodsynopsis>
      <type>void</type><methodname>phpcredits</methodname>
      <methodparam><type>int</type><parameter>flag</parameter></methodparam>
     </methodsynopsis>
    <para>
     Tato funkce vytiskne credits v. seznamu vvoj PHP, modul, atd.
     Generuje pslun HTML kd, kterm se tyto informace vkldaj do strnky.
     Je teba pedat argument indikujc co se vytiskne (peddefinovan
     konstanta flag, viz ne). Napklad k vytitn veobecnch credits mete
     nkde ve svm kdu pout:
     <informalexample>
      <programlisting role="php">
...
phpcredits(CREDITS_GENERAL);
...
      </programlisting>
     </informalexample>
     A pokud chcete vytisknout u kruh vvoj a dokumentan skupinu
     na samostatn strnce, pouijte:
     <informalexample>
      <programlisting role="php">
&lt;?php
phpcredits(CREDITS_GROUP + CREDITS_DOCS + CREDITS_FULLPAGE);
?&gt;
      </programlisting>
     </informalexample>
     A pokud chcete vloit vechny credits do vlastn strnky, pome vm
     nsledujc kd:
     <informalexample>
      <programlisting role="php">
&lt;html&gt;
 &lt;head&gt;
  &lt;title&gt;M strnka s credits&lt;/title&gt;
 &lt;/head&gt;
 &lt;body&gt;
  &lt;?php
	// v vlastn kd
	phpcredits(CREDITS_ALL + CREDITS_FULLPAGE);
	// dal kd
	?&gt;
 &lt;/body&gt;
&lt;/html&gt;
      </programlisting>
     </informalexample>
    </para>
    <para>
    </para>
    <para>
		 <table>
      <title>Peddefinovan <function>phpcredits</function> pznaky</title>
      <tgroup cols="2">
       <thead>
				<row>
				 <entry>nzev</entry>
				 <entry>popis</entry>
				</row>
       </thead>
       <tbody>
				<row>
				 <entry>CREDITS_ALL</entry>
				 <entry>
				 Vechny credits, ekvivalentn k:
				 CREDITS_DOCS + CREDITS_GENERAL + CREDITS_GROUP +
				 CREDITS_MODULES + CREDITS_FULLPAGE. Vygeneruje kompletn
				 samostatnou HTML strnku s pslunmi tagy.
				 </entry>
				</row>
				<row>
				 <entry>CREDITS_DOCS</entry>
				 <entry>Credits dokumentanho tmu</entry>
				</row>
				<row>
				 <entry>CREDITS_FULLPAGE</entry>
				 <entry>
				 Obvykle se pouv v kombinaci s jinmi pznaky. Indikuje, e
				 se m vytisknout kompletn samostatn HTML strnka, vetn
				 informac indikovanch jinmi pznaky.
				 </entry>
				</row>
				<row>
				 <entry>CREDITS_GENERAL</entry>
				 <entry>
				 Veobecn credits: Design a koncept jazyka, autoi PHP 4.0 a
				 SAPI modul.
				 </entry>
				</row>
				<row>
				 <entry>CREDITS_GROUP</entry>
				 <entry>Seznam uho kruhu vvoj</entry>
				</row>
				<row>
				 <entry>CREDITS_MODULES</entry>
				 <entry>Seznam roziujcch modul (extenz) PHP a jejich
				 autor</entry>
				</row>
				<row>
				 <entry>CREDITS_SAPI</entry>
				 <entry>Seznam server API modul PHP a jejich autor</entry>
				</row>
       </tbody>
      </tgroup>
     </table>
    </para>
    <para>
     Viz tak <function>phpinfo</function>,
     <function>phpversion</function>,
     <function>php_logo_guid</function>.
    </para>
   </refsect1>
  </refentry>

  <refentry id="function.phpinfo">
   <refnamediv>
    <refname>phpinfo</refname>
    <refpurpose>Vytisknout spoustu informac o PHP</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Popis</title>
     <methodsynopsis>
      <type>int</type><methodname>phpinfo</methodname>
      <methodparam choice="opt"><type>int</type><parameter>what</parameter></methodparam>
     </methodsynopsis>
    <para>
    Vytiskne velk mnostv informac o souasnm stavu PHP. To zahrnuje
    informace o kompilanch volbch a extenzch, verzi PHP, informaci o serveru
    a systm (pokud je PHP zkompilovno jako modul), PHP prosted, verzi OS,
    cesty, hlavn a lokln hodnoty konfiguranch voleb, HTTP hlaviky, a PHP
    licenci.
    </para>
	  <para>
	  Vstup se d upravit pednm jednou nebo vce z nsledujcch hodnot
	  uloench ve volitelnm argumentu <parameter>what</parameter>.
		 <itemizedlist>
		  <listitem><simpara>INFO_GENERAL</simpara></listitem>
		  <listitem><simpara>INFO_CREDITS</simpara></listitem>
		  <listitem><simpara>INFO_CONFIGURATION</simpara></listitem>
		  <listitem><simpara>INFO_MODULES</simpara></listitem>
		  <listitem><simpara>INFO_ENVIRONMENT</simpara></listitem>
		  <listitem><simpara>INFO_VARIABLES</simpara></listitem>
		  <listitem><simpara>INFO_LICENSE</simpara></listitem>
		  <listitem><simpara>INFO_ALL</simpara></listitem>
		 </itemizedlist>
	  </para>
    <para>
     Viz tak <function>phpversion</function>,
     <function>phpcredits</function>,
     <function>php_logo_guid</function>
    </para>
   </refsect1>
  </refentry>

  <refentry id="function.phpversion">
   <refnamediv>
    <refname>phpversion</refname>
    <refpurpose>Zskat souasnou verzi PHP</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Popis</title>
     <methodsynopsis>
      <type>string</type><methodname>phpversion</methodname>
      <void/>
     </methodsynopsis>
    <para>
     Vrt etzec obsahujc verzi prv bcho PHP parseru.
     <example>
      <title>phpversion() example</title>
      <programlisting role="php">
// prints e.g. 'Souasn verze PHP: 3.0rel-dev'
echo "Souasn verze PHP: ".phpversion();
      </programlisting>
     </example>
    </para>
    <para>
     Viz tak <function>phpinfo</function>,
     <function>phpcredits</function>,
     <function>php_logo_guid</function>
    </para>
   </refsect1>
  </refentry>

  <refentry id="function.php-logo-guid">
   <refnamediv>
    <refname>php_logo_guid</refname>
    <refpurpose>Get the logo guid</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Popis</title>
     <methodsynopsis>
      <type>string</type><methodname>php_logo_guid</methodname>
      <void/>
     </methodsynopsis>
    <para>
     <note>
      <para>
       Tato funkcionalita byla pidna v PHP 4 Beta 4.
      </para>
     </note>
    </para>
    <para>
     Viz tak <function>phpinfo</function>.
     <function>phpversion</function>,
     <function>phpcredits</function>
    </para>
   </refsect1>
  </refentry>

  <refentry id="function.php-sapi-name">
   <refnamediv>
    <refname>php_sapi_name</refname>
    <refpurpose>
     Vrtit typ rozhran mezi web serverem a PHP
     Returns the type of interface between web server and PHP
    </refpurpose>
   </refnamediv>
   <refsect1>
    <title>Popis</title>
     <methodsynopsis>
      <type>string</type><methodname>php_sapi_name</methodname>
      <void/>
     </methodsynopsis>
    <simpara>
     <function>php_sapi_name</function> vrt etzec popisujc malmi psmeny
     typ rozhran mezi web serverem a PHP (Server API, SAPI). U CGI PHP je tento
     etzec "cgi", u mod_php pro Apache je tento etzec "apache" a tak dle.
    </simpara>
    <para>
     <example>
      <title><function>php_sapi_name</function> Example</title>
      <programlisting role="php">
$sapi_type = php_sapi_name();
if ($sapi_type == "cgi")
  print "Pouvte CGI PHP\n";
else
  print "Nepouvte CGI PHP\n";
      </programlisting>
     </example>
    </para>
   </refsect1>
  </refentry>

  <refentry id="function.php-uname">
   <refnamediv>
    <refname>php_uname</refname>
    <refpurpose>
    Vrtit informaci o operanm systmu, na kterm bylo PHP zkompilovno
    </refpurpose>
   </refnamediv>
   <refsect1>
    <title>Popis</title>
     <methodsynopsis>
      <type>string</type><methodname>php_uname</methodname>
      <void/>
     </methodsynopsis>
    <simpara>
     <function>php_uname</function> vrt etzec s popisem operanho systmu,
     na kterm bylo PHP zkompilovno.
    </simpara>
    <para>
     <example>
      <title><function>php_uname</function> Example</title>
      <programlisting role="php">
if (substr(php_uname(), 0, 7) == "Windows") {
  die("Pardon, tento skript na Windows nefunguje.\n");
}
			</programlisting>
     </example>
    </para>
   </refsect1>
  </refentry>

  <refentry id="function.putenv">
   <refnamediv>
    <refname>putenv</refname>
    <refpurpose>Nastavit hodnotu systmov promnn</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Popis</title>
     <methodsynopsis>
      <type>void</type><methodname>putenv</methodname>
      <methodparam><type>string</type><parameter>setting</parameter></methodparam>
     </methodsynopsis>
    <para>
     Pid <parameter>setting</parameter> do prosted serveru.
    </para>
    <para>
     <example>
      <title>Nastaven systmov promnn</title>
      <programlisting role="php">
putenv ("UNIQID=$uniqid");
      </programlisting>
     </example>
    </para>
   </refsect1>
  </refentry>

  <refentry id="function.set-magic-quotes-runtime">
   <refnamediv>
    <refname>set_magic_quotes_runtime</refname>
    <refpurpose>
    Nastavit souasnou aktivn hodnotu magic_quotes_runtime
    </refpurpose>
   </refnamediv>
   <refsect1>
    <title>Popis</title>
     <methodsynopsis>
      <type>long</type><methodname>set_magic_quotes_runtime</methodname>
      <methodparam><type>int</type><parameter>new_setting</parameter></methodparam>
     </methodsynopsis>
    <simpara>
     Nastav souasnou aktivn konfiguran volby <link
			linkend="ini.magic-quotes-runtime">magic_quotes_runtime</link>.
     (0 vypnuto, 1 zapnuto)
    </simpara>
    <simpara>
     Viz tak <function>get_magic_quotes_gpc</function>,
     <function>get_magic_quotes_runtime</function>.
    </simpara>
   </refsect1>
  </refentry>

  <refentry id="function.set-time-limit">
   <refnamediv>
    <refname>set_time_limit</refname>
    <refpurpose>Omezit maximln dobu prbhu skriptu</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Popis</title>
     <methodsynopsis>
      <type>void</type><methodname>set_time_limit</methodname>
      <methodparam><type>int</type><parameter>seconds</parameter></methodparam>
     </methodsynopsis>
    <simpara>
    Ur poet sekund po kter me skript bet. Pokud je dosaeno tohoto
    asu, skript vrt fatln chybu. Standardn limit je 30 sekund, nebo,
    pokud existuje, hodnota direktivy max_execution_time definovan v
    <link linkend="configuration.file">konfiguranm souboru</link>. Pokud je
    <parameter>seconds</parameter> nula, neexistuje dn asov limit.
    </simpara>
    <simpara>
    <function>set_time_limit</function> pi svm zavoln restartuje ta asu
    od nuly. Jinmi slovy, pokud je limit standardnch  sekund a po 25
    sekundch provdn skriptu dojde k voln set_time_limit(20), tento skript
    pob celkem 45 sekund pedtm, ne skon na asovm limitu.
    </simpara>
    <simpara>
    Vimnte si, e <function>set_time_limit</function> nem dn inek, kdy
    PHP b v bezpenm mdu. Obejt to lz jedine vypnutm bezpenho mdu nebo
    zmnou asovho limitu v <link
			linkend="configuration.file">konfiguranm souboru</link>.
    </simpara>
   </refsect1>
  </refentry>

  <refentry id="function.zend-logo-guid">
   <refnamediv>
    <refname>zend_logo_guid</refname>
    <refpurpose>Zskat zend guid</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Popis</title>
     <methodsynopsis>
      <type>string</type><methodname>zend_logo_guid</methodname>
      <void/>
     </methodsynopsis>
    <para>
     <note>
      <para>
       Tato funkcionalita byla pidna v PHP 4 Beta 4.
      </para>
     </note>
    </para>
   </refsect1>
  </refentry>

  <refentry id="function.get-loaded-extensions">
   <refnamediv>
    <refname>get_loaded_extensions</refname>
    <refpurpose>
    Vrtit pole se jmny vech zkompilovanch a natench modul (extenz)
    </refpurpose>
   </refnamediv>
   <refsect1>
    <title>Popis</title>
     <methodsynopsis>
      <type>array</type><methodname>get_loaded_extensions</methodname>
      <void/>
     </methodsynopsis>
    <para>
    Tato funkce vrac jmna vech modul (extenz) zkompilovanch a natench
    do PHP interpretru.
    </para>
    <para>
     Napklad nsledujc dek
     <informalexample>
      <programlisting>
print_r (get_loaded_extensions());
      </programlisting>
     </informalexample>
     vype seznam podobn tomuto:
     <informalexample>
      <programlisting>
Array
(
    [0] =&gt; xml
    [1] =&gt; wddx
    [2] =&gt; standard
	  [3] =&gt; session
	  [4] =&gt; posix
	  [5] =&gt; pgsql
	  [6] =&gt; pcre
	  [7] =&gt; gd
	  [8] =&gt; ftp
	  [9] =&gt; db
	  [10] =&gt; Calendar
	  [11] =&gt; bcmath
)
      </programlisting>
     </informalexample>
    </para>
    <para>
     Viz tak: <function>get_extension_funcs</function>.
    </para>
   </refsect1>
  </refentry>

  <refentry id="function.get-extension-funcs">
   <refnamediv>
    <refname>get_extension_funcs</refname>
    <refpurpose>
    Vrtit pole jmen funkc uritho modulu
    </refpurpose>
   </refnamediv>
   <refsect1>
    <title>Popis</title>
     <methodsynopsis>
      <type>array</type><methodname>get_extension_funcs</methodname>
      <methodparam><type>string</type><parameter>module_name</parameter></methodparam>
     </methodsynopsis>
    <para>
    Tato funkce vrac jmna vech funkc definovanch v modulu urenm
    argumentem <parameter>module_name</parameter>.
    </para>
    <para>
    Napklad nsledujc dky
     <informalexample>
      <programlisting>
print_r (get_extension_funcs (&quot;xml&quot;));
print_r (get_extension_funcs (&quot;gd&quot;));
			</programlisting>
     </informalexample>
     vytisknou seznam vech funkc v modulech
     <varname>xml</varname> a <varname>gd</varname>.
    </para>
    <para>
     Viz tak: <function>get_loaded_extensions</function>
    </para>
   </refsect1>
  </refentry>

  <refentry id="function.get-required-files">
   <refnamediv>
    <refname>get_required_files</refname>
    <refpurpose>
    Vrtit pole jmen vech soubor, kter byly v uritm skriptu nateny pomoc
    require_once()
    </refpurpose>
   </refnamediv>
   <refsect1>
    <title>Popis</title>
     <methodsynopsis>
      <type>array</type><methodname>get_required_files</methodname>
      <void/>
     </methodsynopsis>
    <para>
    Tato funkce vrt asociativn pole jmen vech soubor, kter byly nateny do
    probhajcho skriptu pomoc <function>require_once</function>. Indexy
    tohoto pole jsou nzvy soubor pouitch v <function>require_once</function>
    bez ppony &quot;.php&quot;.
    </para>
    <para>
     Nsledujc pklad
     <example>
      <title>Tisk require()ovanch a include()ovanch soubor</title>
      <programlisting>
&lt;?php

require_once (&quot;local.php&quot;);
require_once (&quot;../inc/global.php&quot;);

for ($i=1; $i&lt;5; $i++)
  include &quot;util&quot;.$i.&quot;php&quot;;

  echo &quot;Required_once files\n&quot;;
  print_r (get_required_files());

  echo &quot;Included_once files\n&quot;;
  print_r (get_included_files());
?&gt;
      </programlisting>
     </example>
     vygeneruje nsledujc vstup:
     <informalexample>
      <programlisting>
Required_once files
Array
(
  [local] =&gt; local.php
  [../inc/global] =&gt; /full/path/to/inc/global.php
)

Included_once files
Array
(
    [util1] =&gt; util1.php
    [util2] =&gt; util2.php
    [util3] =&gt; util3.php
    [util4] =&gt; util4.php
)
      </programlisting>
     </informalexample>
    </para>
    <para>
     <note>
      <para>
      Od verze PHP 4.0.1pl2 tato funkce pedpokld, e soubory v
       <varname>required_once</varname> kon pponou
       &quot;.php&quot;, jin ppony nefunguj.
      </para>
     </note>
    </para>
    <para>
     Viz tak: <function>require_once</function>,
     <function>include_once</function>,
     <function>get_included_files</function>
    </para>
   </refsect1>
  </refentry>

  <refentry id="function.get-included-files">
   <refnamediv>
    <refname>get_included_files</refname>
    <refpurpose>
    Vrtit pole jmen vech soubor, kter byly ve skriptu nateny pomoc
    include_once()
    </refpurpose>
   </refnamediv>
   <refsect1>
    <title>Popis</title>
     <methodsynopsis>
      <type>array</type><methodname>get_included_files</methodname>
      <void/>
     </methodsynopsis>
    <para>
    Tato funkce vrt asociativn pole jmen vech soubor, kter byly nateny do
    skriptu pomoc <function>include_once</function>. Indexy tohoto pole jsou
    nzvy soubor pouitch v <function>include_once</function>
    bez ppony &quot;.php&quot;.
    </para>
    <para>
     <note>
      <para>
      Od verze PHP 4.0.1pl2 tato funkce pedpokld, e soubory v
      <varname>include_once</varname> kon pponou
      &quot;.php&quot;, jin ppony nefunguj.
      </para>
     </note>
    </para>
    <para>
     Viz tak: <function>require_once</function>,
     <function>include_once</function>,
     <function>get_required_files</function>
    </para>
   </refsect1>
  </refentry>

 </reference>

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