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<?php $hit = []; $str = '/answer 56 this is my sample text'; preg_match('/^\/answer ([1-9][0-9]*) (.{1,512})$/', $str, $hit, PREG_OFFSET_CAPTURE); echo'<pre>',print_r($hit),'</pre>'; // TODO
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 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
<pre>Array ( [0] => Array ( [0] => /answer 56 this is my sample text [1] => 0 ) [1] => Array ( [0] => 56 [1] => 8 ) [2] => Array ( [0] => this is my sample text [1] => 11 ) ) 1</pre>
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 <pre>Array ( [0] => Array ( [0] => /answer 56 this is my sample text [1] => 0 ) [1] => Array ( [0] => 56 [1] => 8 ) [2] => Array ( [0] => this is my sample text [1] => 11 ) ) 1</pre>

preferences:
213.21 ms | 402 KiB | 291 Q