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<?php $serialized_array = serialize(array(1234=>array("something"=>"foobar"))); echo "Serialized Array: $serialized_array" . PHP_EOL; $array = unserialize($serialized_array); print_r($array); $key = 1234; if (array_key_exists($key, $array)) { echo "Key Exists!"; } else { echo "Key Not Found!"; }
Output for 7.0.0 - 7.0.20, 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
Serialized Array: a:1:{i:1234;a:1:{s:9:"something";s:6:"foobar";}} Array ( [1234] => Array ( [something] => foobar ) ) Key Exists!
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 Serialized Array: a:1:{i:1234;a:1:{s:9:"something";s:6:"foobar";}} Array ( [1234] => Array ( [something] => foobar ) ) Key Exists!
preferences:
177.01 ms | 402 KiB | 203 Q