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<?php $xyz[][][]=0; $abc = [ "MA" => [ "Zia Rehman" => [] ] ]; if(array_key_exists("Zia Rehman", $xyz)) { $xyz['MA']['Zia Rehman'] = []; } var_dump($xyz);
Output for 5.6.0 - 5.6.28, 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
array(1) { [0]=> array(1) { [0]=> array(1) { [0]=> int(0) } } }
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(1) { [0]=> array(1) { [0]=> array(1) { [0]=> int(0) } } }

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189.64 ms | 402 KiB | 236 Q