PHP Array function sequence Array_combine ()-Array merge function usage Instructions _php tips

Array_combine () Definition and usage
The Array_combine () function creates a new array by merging two arrays, one of which is the key name and the other is the key value.

If one of the arrays is empty, or if the number of elements in the two arrays is different, the function returns FALSE.

Grammar
Array_combine (Array1,array2)
Parameter description
Array1 required. Specify the key name.
Array2 required. The specified value.

Tips and comments
Note: Two parameters must have the same number of elements.

Example

Copy Code code as follows:

<?php
$a 1=array ("a", "B", "C", "D");
$a 2=array ("Cat", "Dog", "Horse", "Cow");
Print_r (Array_combine ($a 1, $a 2));
?>

Output:

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