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Complete PHP Array Reference
Definition and Usage
The key() function returns the element key from the current internal pointer position.
This function returns FALSE on error.
Syntax
key(array)
| Parameter | Description |
|---|---|
| array | Required. Specifies the array to use |
Example
<?php
$people = array("Peter", "Joe", "Glenn", "Cleveland");
echo "The key from the current position is: " . key($people);
?>
$people = array("Peter", "Joe", "Glenn", "Cleveland");
echo "The key from the current position is: " . key($people);
?>
The output of the code above will be:
The key from the current position is: 0
Complete PHP Array Reference
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