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PHP array_combine() Function

Complete PHP Array Reference

Definition and Usage

The array_combine() function creates an array by combining two other arrays, where the first array is the keys, and the other array is the values.

Syntax

array_combine(array1,array2)

Parameter	Description
array1	Required. An array, specifying the keys
array2	Required. An array, specifying the values

Tips and Notes

Note: Both parameters must have equal number of elements.

Example

<?php
$a1=array("a","b","c","d");
$a2=array("Cat","Dog","Horse","Cow");
print_r(array_combine($a1,$a2));
?>

The output of the code above will be:

Array ( [a] => Cat [b] => Dog [c] => Horse [d] => Cow )