key – Fetch a key from an associative array
Description
mixed key ( array array)
key() returns the index element of the current array position.
|
Example 1. key() example
<?php
$array = array(
‘fruit1′ => ‘apple’,
‘fruit2′ => ‘orange’,
‘fruit3′ => ‘grape’,
‘fruit4′ => ‘apple’,
‘fruit5′ => ‘apple’);
// this cycle echoes all associative array
// key where value equals “apple”
while ($fruit_name = current($array)) {
if ($fruit_name == ‘apple’) {
echo key($array).‘<br />’;
}
next($array);
}
?> |
|
Share and Enjoy:
These icons link to social bookmarking sites where readers can share and discover new web pages.
If you enjoyed this post, please consider to leave a comment or subscribe to the feed and get future articles delivered to your feed reader.
Comments
No comments yet.
Leave a comment