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<?php echo(preg_replace('~\[admin(.+?)\[/admin\]~ise', '\'[admin\' . strtr(\'$1\', array("\n" => \'&#13;\', \' \' => \' &#32;\')) . \'[/admin]\'', '[admin]test[/admin]'));
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 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: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead in /in/SnEgX on line 3
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.28
Deprecated: preg_replace(): The /e modifier is deprecated, use preg_replace_callback instead in /in/SnEgX on line 3 [admin]test[/admin]
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45
[admin]test[/admin]

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