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<?php $a = preg_replace("/^(.*)/e", "-","Перегудов"); echo $a; ?>
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/HNP8B on line 2
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Deprecated: preg_replace(): The /e modifier is deprecated, use preg_replace_callback instead in /in/HNP8B on line 2 Parse error: syntax error, unexpected ';' in /in/HNP8B(2) : regexp code on line 1 Fatal error: preg_replace(): Failed evaluating code: - in /in/HNP8B on line 2
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45
Parse error: syntax error, unexpected ';' in /in/HNP8B(2) : regexp code on line 1 Fatal error: preg_replace(): Failed evaluating code: - in /in/HNP8B on line 2
Process exited with code 255.
Output for 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected ';' in /in/HNP8B(2) : regexp code on line 1 Fatal error: preg_replace(): Failed evaluating code: - in /in/HNP8B on line 2
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected ';' in /in/HNP8B(2) : regexp code on line 1 Fatal error: preg_replace(): Failed evaluating code: - in /in/HNP8B on line 2
Process exited with code 255.
Output for 4.3.5 - 4.3.10
Parse error: parse error, unexpected ';' in /in/HNP8B(2) : regexp code on line 1 Fatal error: Failed evaluating code: - in /in/HNP8B on line 2
Process exited with code 255.
Output for 4.3.4
Parse error: parse error in /in/HNP8B(2) : regexp code on line 1 Fatal error: Failed evaluating code: - in /in/HNP8B on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.3
Parse error: parse error in /in/HNP8B(2) : regexp code on line 1
Process exited with code 139.
Output for 4.3.0 - 4.3.1
Parse error: parse error, unexpected ';' in /in/HNP8B(2) : regexp code on line 1
Process exited with code 139.

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