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<?php $data = [ 'q','w', 'e', 'r' => 'vfbf' ]; function isAssociativeArray($array) { krsort($data, SORT_STRING); return !is_numeric(key($data)); } var_dump(isAssociativeArray($data));
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Fatal error: Uncaught TypeError: krsort(): Argument #1 ($array) must be of type array, null given in /in/OYAUF:9 Stack trace: #0 /in/OYAUF(9): krsort(NULL, 2) #1 /in/OYAUF(14): isAssociativeArray(Array) #2 {main} thrown in /in/OYAUF on line 9
Process exited with code 255.
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 Fatal error: Uncaught TypeError: krsort(): Argument #1 ($array) must be of type array, null given in /in/OYAUF:9 Stack trace: #0 /in/OYAUF(9): krsort(NULL, 2) #1 /in/OYAUF(14): isAssociativeArray(Array) #2 {main} thrown in /in/OYAUF on line 9
Process exited with code 255.
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: krsort() expects parameter 1 to be array, null given in /in/OYAUF on line 9 Warning: key() expects parameter 1 to be array, null given in /in/OYAUF on line 11 bool(true)

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