array_combine
(PHP 5, PHP 7, PHP 8)
array_combine — Creates an array by using one array for keys and another for its values
Description
array_combine(array
$keys, array $values): array
Creates an array by using the values from the
keys array as keys and the values from the
values array as the corresponding values.
Parameters
-
keys -
Array of keys to be used. Illegal values for key will be converted to string.
-
values -
Array of values to be used
Return Values
Returns the combined array.
Errors/Exceptions
As of PHP 8.0.0, a ValueError is thrown if the number of elements in
keys and values does not
match.
Prior to PHP 8.0.0, a E_WARNING was emitted instead.
Changelog
| Version | Description |
|---|---|
| 8.0.0 |
array_combine() will now throw a
ValueError if the number of elements
for each array is not equal;
previously this function returned false instead.
|
Examples
Example #1 A simple array_combine() example
<?php
$a = array('green', 'red', 'yellow');
$b = array('avocado', 'apple', 'banana');
$c = array_combine($a, $b);
print_r($c);
?>
The above example will output:
Array
(
[green] => avocado
[red] => apple
[yellow] => banana
)
See Also
- array_merge() - Merge one or more arrays
- array_walk() - Apply a user supplied function to every member of an array
- array_values() - Return all the values of an array
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