Share on Google+Share on Google+

php array contains key

Advertisement
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

Advertisements

Posted on: October 28, 2009 If you enjoyed this post then why not add us on Google+? Add us to your Circles

Share this Tutorial Follow us on Twitter, or add us on Facebook or Google Plus to keep you updated with the recent trends of Java and other open source platforms.