The Array_combine () function in PHP is detailed

There are a lot of array functions that can be mastered slowly one at a time. Now let's do an introduction to the Array_combine function. Its function is to put two arrays one by the array key name, one by the array value group to synthesize the new array.

The Array_combine () function in PHP is detailed

A new array is created by merging two arrays, one of which is the key name and the other array element is the key value:

<?php$fname=array ("Peter", "Ben", "Joe"), $age =array ("n", "PNs", "a"), $c =array_combine ($fname, $age);p Rint_r ($c) ;? >

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 element is the key value.

Note: Key an array groups and key-value arrays must have the same number of elements!

Grammar

Array_combine (keys,values);

Parameter description

Keys required. Specifies the key name of the array.

values are required. Specifies the key value of the array.

Technical details return value:

Returns the merged array. Returns FALSE if the number of elements in the two array is different.

PHP version: 5+ update log:

Before PHP 5.4, if the array is empty, the e_warning level error is reported and FALSE is returned.