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run code in 300+ PHP versions simultaneously
<?php $input = array ( 0 => array ( 'question_no' => 1, 'subject_id' => 1, 'question_id' => 255, 'currect_ans_id' => 2657, 'time_taken' => 110, 'is_visited' => 1, 'is_saved' => 0, 'answer_id' => 2659 ), 1 => array ( 'question_no' => 2, 'subject_id' => 1, 'question_id' => 256, 'currect_ans_id' => 2662, 'time_taken' => 0, 'is_visited' => 1, 'is_saved' => 0 ) ); $output = array_filter($input, function ($a) { return isset($a['answer_id']); }); print_r($output);
Output for 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 - 8.2.19, 8.3.0 - 8.3.4, 8.3.6 - 8.3.7
Array ( [0] => Array ( [question_no] => 1 [subject_id] => 1 [question_id] => 255 [currect_ans_id] => 2657 [time_taken] => 110 [is_visited] => 1 [is_saved] => 0 [answer_id] => 2659 ) )
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 Array ( [0] => Array ( [question_no] => 1 [subject_id] => 1 [question_id] => 255 [currect_ans_id] => 2657 [time_taken] => 110 [is_visited] => 1 [is_saved] => 0 [answer_id] => 2659 ) )

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116.08 ms | 402 KiB | 183 Q