In actual use, we may need to merge one or more arrays into one array. At this time, we may need to use array_merge()
Function, this article will take you to take a look. First of all, we must take a look at this function syntax:
array_merge ( array $a ,array $b,...... )
$a,$b,... : Array to be merged
Return value: merged array
Code example:
1. Use the array_merge() function
<?php $array1 = array("color" => "red", 2, 4); $array2 = array("a", "b", "color" => "green", "shape" => "trapezoid", 4); $result = array_merge($array1, $array2); print_r($result); ?>
输出:Array ([color] => green[0] => 2[1] => 4[2] => a[3] => b[shape] => trapezoid [4] => 4)
2. Use " " to connect
<?php $array1 = array(0 => 'zero_a', 2 => 'two_a', 3 => 'three_a'); $array2 = array(1 => 'one_b', 3 => 'three_b', 4 => 'four_b'); $result = $array1 + $array2; var_dump($result); ?>
输出: array(5) { [0]=> string(6) "zero_a" [2]=> string(5) "two_a" [3]=> string(7) "three_a" [1]=> string(5) "one_b" [4]=> string(6) "four_b" }
3. Combine non-array classes
<?php $beginning = 'foo'; $end = array(1 => 'bar'); $result = array_merge((array)$beginning, (array)$end); print_r($result); ?>
输出:Array ( [0] => foo [1] => bar )
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