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array_key_exists in php

Posted on December 2, 2021December 2, 2021 By christo No Comments on array_key_exists in php

Table of Contents

  • Syntax of array_key_exists
  • Example of array_key_exists

Syntax of array_key_exists

bool array_key_exists(mixed key, array array)

Returns true if array contains a key with the value key. If no such key is available, returns false

Example of array_key_exists

<?php
$search_array = array('first' => 1, 'second' => 4);
if (array_key_exists('first', $search_array)) {
    echo "The 'first' element is in the array";
}
?>

php Tags:array_key_exists, php

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