php key in array exists
<?php
$search_array = array('first' => null, 'second' => 4);
// returns false
isset($search_array['first']);
// returns true
array_key_exists('first', $search_array);
?>php key in array exists
<?php
$search_array = array('first' => null, 'second' => 4);
// returns false
isset($search_array['first']);
// returns true
array_key_exists('first', $search_array);
?>in_array Associative Array PHP
$arr = array('lang1' => 'php','lang2' => 'java','lang3' => 'python');
if ( in_array( 'java', $arr ) ) {
echo 'exists';
}else{
echo 'not exists';
}Copyright © 2021 Codeinu
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