php array contains key
This section demonstrates the use of array_key_exists() function in php
This section demonstrates the use of array_key_exists() function in php
- array_key_exists() function is used to check whether the given key is present in the given array or not.
PHP Array Contains Key Example
<?php
$ar=array("d"=>"daisy","m"=>"marigold","r"=>"rose","l"=>"lotus");
$b=array_key_exists("r",$ar);
if($b){
echo "r is key in the array";
}
else
echo "r is not the key in the array";
echo"<br>";
$b1=array_key_exists("a",$ar);
if($b1){
echo "a is key in the array";
}
else {
echo "a is not the key in the array";
}
?>
Output r is key in the array a is not the key in the array
