1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
|
<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision: 324373 $ -->
<section xml:id="internals2.opcodes.begin-silence">
<title>BEGIN_SILENCE</title>
<section xml:id="internals2.opcodes.begin-silence.code">
<title>PHP code</title>
<programlisting role="php">
<![CDATA[
<?php
/*
* prepare to perform function call without displaying error messages
* opcode number: 57
*/
/* Intentional file error */
$my_file = @file ('non_existent_file') or
die ("error:'$php_errormsg'");
?>
]]>
</programlisting>
</section>
<section xml:id="internals2.opcodes.begin-silence.listing">
<title>PHP opcodes</title>
<simpara>Function name: (null)</simpara>
<simpara>Compiled variables: !0=$my_file, !1=$php_errormsg </simpara>
<informaltable>
<tgroup cols="7">
<thead>
<row>
<entry>line</entry><entry>#</entry><entry>op</entry>
<entry>fetch</entry><entry>ext</entry><entry>return</entry>
<entry>operands</entry>
</row>
</thead>
<tbody>
<row>
<entry>7</entry><entry>0</entry>
<entry>BEGIN_SILENCE</entry><entry></entry>
<entry></entry><entry>~0</entry>
<entry></entry>
</row>
<row>
<entry></entry><entry>1</entry>
<entry>SEND_VAL</entry><entry></entry>
<entry></entry><entry></entry>
<entry>'non_existent_file'</entry>
</row>
<row>
<entry></entry><entry>2</entry>
<entry>DO_FCALL</entry><entry></entry>
<entry>1</entry><entry></entry>
<entry>'file'</entry>
</row>
<row>
<entry></entry><entry>3</entry>
<entry>END_SILENCE</entry><entry></entry>
<entry></entry><entry></entry>
<entry>~0</entry>
</row>
<row>
<entry></entry><entry>4</entry>
<entry>ASSIGN</entry><entry></entry>
<entry></entry><entry>$2</entry>
<entry>!0,$1</entry>
</row>
<row>
<entry></entry><entry>5</entry>
<entry>JMPNZ_EX</entry><entry></entry>
<entry></entry><entry>~3</entry>
<entry>$2,->11</entry>
</row>
<row>
<entry>8</entry><entry>6</entry>
<entry>ADD_STRING</entry><entry></entry>
<entry></entry><entry>~4</entry>
<entry>'error%3A%27'</entry>
</row>
<row>
<entry></entry><entry>7</entry>
<entry>ADD_VAR</entry><entry></entry>
<entry></entry><entry>~4</entry>
<entry>~4,!1</entry>
</row>
<row>
<entry></entry><entry>8</entry>
<entry>ADD_CHAR</entry><entry></entry>
<entry></entry><entry>~4</entry>
<entry>~4,39</entry>
</row>
<row>
<entry></entry><entry>9</entry>
<entry>EXIT</entry><entry></entry>
<entry></entry><entry></entry>
<entry>~4</entry>
</row>
<row>
<entry></entry><entry>10</entry>
<entry>BOOL</entry><entry></entry>
<entry></entry><entry>~3</entry>
<entry>true</entry>
</row>
<row>
<entry></entry><entry>11</entry>
<entry>FREE</entry><entry></entry>
<entry></entry><entry></entry>
<entry>~3</entry>
</row>
<row>
<entry>9</entry><entry>12</entry>
<entry>RETURN</entry><entry></entry>
<entry></entry><entry></entry>
<entry>1</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</section>
</section>
|
