PHP » Arrays » key()
- Syntax:
- mixed key(array array)
- array
- An associative array.
Returns the key for the current element.
This function is similar to current(), but returns the key for the current element instead of the element itself.
Examples
Code:
<?php
$array1 = array(
"un" => "one",
"deux" => "two",
"trois" => "three");
while ($key = key($array1)) {
print "$key ";
next($array1);
}
?> Output:
un deux troisExplanation:
The array in the example contains translations from French to English. All the French words are printed.
See Also:
