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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision: 288721 $ -->
<chapter xml:id="scream.examples" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
&reftitle.examples;
<section xml:id='scream.examples-simple'>
<title>Example that shows the effect of scream</title>
<para>
This example demonstrates how scream affects the behaviour of PHP's error handler.
</para>
<para>
<example>
<title>Enabling and disabling scream at runtime</title>
<programlisting role="php">
<![CDATA[
<?php
// Make sure errors will be shown
ini_set('display_errors', true);
error_reporting(E_ALL);
// Disable scream - this is the default and produce an error
ini_set('scream.enabled', false);
echo "Opening http://example.com/not-existing-file\n";
@fopen('http://example.com/not-existing-file', 'r');
// Now enable scream and try again
ini_set('scream.enabled', true);
echo "Opening http://example.com/not-existing-file\n";
@fopen('http://example.com/another-not-existing-file', 'r');
?>
]]>
</programlisting>
&example.outputs.similar;
<screen>
<![CDATA[
Opening http://example.com/not-existing-file
Opening http://example.com/not-existing-file
Warning: fopen(http://example.com/another-not-existing-file): failed to open stream: HTTP request failed! HTTP/1.1 404 Not Found in example.php on line 14
]]>
</screen>
</example>
</para>
<note>
<simpara>
Usually one would set this in the <link linkend="configuration.file">php.ini configuration file</link>
instead of changing the code.
</simpara>
</note>
</section>
</chapter>
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