<?php
$expr = '#<meta\s+name\s*=\s*([\'"])http_equiv\1\s.*?content\s*=\s*([\'"])text/html\s*;\s*charset\s*=\s*((?:(?!,|>|\2).)+)#i';
$subject = <<<HTML
<HTML>
<!-- $Revision: 317718 $ -->
<HEAD>
<TITLE>PHP Manual</TITLE>
<META NAME="HTTP_EQUIV" CONTENT="text/html; charset=UTF-8">
<LINK REL="STYLESHEET" HREF="style.css">
</HEAD>
HTML;
preg_match($expr, $subject, $matches);
var_dump($matches);
- Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
- Warning: Undefined variable $Revision in /in/SiqJ9 on line 6
array(4) {
[0]=>
string(57) "<META NAME="HTTP_EQUIV" CONTENT="text/html; charset=UTF-8"
[1]=>
string(1) """
[2]=>
string(1) """
[3]=>
string(5) "UTF-8"
}
- Output for 5.0.4 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.2, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
- Notice: Undefined variable: Revision in /in/SiqJ9 on line 6
array(4) {
[0]=>
string(57) "<META NAME="HTTP_EQUIV" CONTENT="text/html; charset=UTF-8"
[1]=>
string(1) """
[2]=>
string(1) """
[3]=>
string(5) "UTF-8"
}
- Output for 7.3.32 - 7.3.33, 7.4.26
- array(4) {
[0]=>
string(57) "<META NAME="HTTP_EQUIV" CONTENT="text/html; charset=UTF-8"
[1]=>
string(1) """
[2]=>
string(1) """
[3]=>
string(5) "UTF-8"
}
- Output for 5.2.3 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
- Notice: Undefined variable: Revision in /in/SiqJ9 on line 11
array(4) {
[0]=>
string(57) "<META NAME="HTTP_EQUIV" CONTENT="text/html; charset=UTF-8"
[1]=>
string(1) """
[2]=>
string(1) """
[3]=>
string(5) "UTF-8"
}
- Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.3
- Notice: Undefined variable: Revision in /in/SiqJ9 on line 6
array(4) {
[0]=>
string(57) "<META NAME="HTTP_EQUIV" CONTENT="text/html; charset=UTF-8"
[1]=>
string(1) """
[2]=>
string(1) """
[3]=>
string(5) "UTF-8"
}
preferences:
357.17 ms | 402 KiB | 460 Q