A Comprehensive Guide to PHP's `in_array()` Function
https://reintech.io/blog/comprehensive-guide-php-in-array-function
WEBApr 14, 2023 · The `in_array()` function in PHP is used to check whether a given value exists in an array or not. It returns a boolean value, i.e., `true` if the value is found in the array, and `false` otherwise. The function is case-sensitive, meaning that it treats uppercase and lowercase characters as distinct.
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