PHP array_intersect_key() is an inbuilt function that compares the keys of two (or more) arrays and returns the matches. PHP Array intersect_key Example.
PHP array_intersect_key() is an inbuilt function that compares the keys of two (or more) arrays and returns the matches. The function compares the keys of two or more arrays, and return the array that contains the items from array1 that are present in array2, array3, etc.
The array_intersect_key() a builtin function in PHP is used to compute an intersection of two or more arrays. The function is different from array_intersect() and array_intersect_assoc() in a way that it uses the keys for the comparison and returns the matching key items.
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PHP json_decode is an inbuilt function that takes the JSON encoded string and converts it into a PHP variable. JSON stands for JavaScript Object Notation.
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