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run code in 300+ PHP versions simultaneously
<?php $str = "bla_string_bla_bla_bla"; $prefix = 'bla_'; $str = preg_replace('#^' . preg_quote($prefix) . '#', '', $str); var_export($str); echo "\n---\n"; $str = "string_bla_bla_bla"; $str = preg_replace('#^' . preg_quote($prefix) . '#', '', $str); var_export($str);
Output for 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.13
'string_bla_bla_bla' --- 'string_bla_bla_bla'

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