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<?php var_dump(preg_match("^<[a-z:/.?=0-9]+>; rel=\"next\"$", "<http://api.github/user/xyz?page=2>; rel=\"next\"", $result)); var_dump($result);
Output for 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 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 - 8.3.4, 8.3.6
Warning: preg_match(): No ending delimiter '^' found in /in/lfUod on line 2 bool(false) NULL
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Warning: preg_match(): No ending delimiter '^' found in /in/lfUod on line 2 bool(false) NULL
Output for 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
Warning: preg_match(): No ending delimiter '^' found in /in/lfUod on line 2 bool(false) array(0) { }
Output for 4.3.0 - 4.3.10
Warning: No ending delimiter '^' found in /in/lfUod on line 2 bool(false) array(0) { }

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