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<?php $c = array(); // You store some data using some string keys foreach (array('ab', 'cd', '10', 'gh', '24') as $key) { $c[$key] = 1; } var_dump($c); // You pass the array $c to some place else and there you do something like foreach ($c as $k => $v) { if ($k === '10') { echo "found"; exit; } } echo "Not found";
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 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
array(5) { ["ab"]=> int(1) ["cd"]=> int(1) [10]=> int(1) ["gh"]=> int(1) [24]=> int(1) } Not found
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(5) { ["ab"]=> int(1) ["cd"]=> int(1) [10]=> int(1) ["gh"]=> int(1) [24]=> int(1) } Not found
preferences:
320.82 ms | 402 KiB | 459 Q