Using the isset() function to see whether an array element is defined for a given index. : isset « Data Type « PHP

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PHP » Data Type » isset

Using the isset() function to see whether an array element is defined for a given index.


 

<?php 

$array = array('a' => 'R', 'b' => 2, c => '2'); 

print "<p>Using for:</p>\n<p>"; 

$limit = count($array); 

for($i = 0; $i < $limit; $i++) 

    if( isset($array[$i]) ) 

        printf("&middot; %s,", $array[$i]); 

?>

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