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run code in 300+ PHP versions simultaneously
<?php echo preg_match( 'https://www.baidu.com' ,'/^http[s]:\/\/.+/'); echo "\n"; if (preg_match( 'https://www.baidu.com' ,'/^http[s]:\/\/.+/') != 1) { echo "1111111111111111"; }
Output for git.master, git.master_jit, rfc.property-hooks
Warning: preg_match(): Delimiter must not be alphanumeric, backslash, or NUL in /in/QYvYd on line 2 Warning: preg_match(): Delimiter must not be alphanumeric, backslash, or NUL in /in/QYvYd on line 4 1111111111111111

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