The PHP function preg_match compares a given string $subject with a given regular expression $pattern.
Leer mas..PHP has several functions that can be used with regular expressions; regular expressions are commonly referred to as regex in programming.
Leer mas..The array_search function searches the array for a value that corresponds to the given value. If the given value is found in the array, it will return its key
Leer mas..The PHP array_push function adds one or more values to the end of an array. As you can see in the description, the array is passed by reference, meaning that this function will modify the original array.
Leer mas..The PHP function array_pop removes the last element from an array and returns the removed element
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