array_key() Function in PHP
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array_key()
The key() function returns the element key from the current internal pointer position and return false on error.
Syntax:key(array)
In above syntax, "array" specifies the array to use
Example:
<?php
$vehicle = array("Car", "Scooter", "Motorcycle", "Truck");
echo "The key from the current position is: " .key($vehicle);
?>
Output:
The key from the current position is: 0
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