Thearray_merge()function is a built-in PHP function that is used to merge one or more arrays. It takes an arbitrary number of arrays as arguments and returns a new array. The new array contains the elements of the first array followed by the elements of the second array and so on. He...
PHP Version:4+ Changelog:As of PHP 5.0, this function only accept parameters of type array More Examples Example Merge two associative arrays into one array: <?php $a1=array("a"=>"red","b"=>"green"); $a2=array("c"=>"blue","b"=>"yellow"); ...
Merge two arrays into one array: <?php $a1=array("a"=>"red","b"=>"green"); $a2=array("c"=>"blue","b"=>"yellow"); print_r(array_merge_recursive($a1,$a2)); ?> Try it Yourself » Definition and Usage The array_merge_recursive() function merges one or more arrays into ...
http://php.net/manual/en/function.array-merge.php If the input arrays have the same string keys, then the later value for that key will overwrite the previous one. If, however, the arrays contain numeric keys, the later value will not overwrite the original value, but will be appended. ...
I wished to point out that while other comments state that the spread operator should be faster than array_merge, I have actually found the opposite to be true for normal arrays. This is the case in both PHP 7.4 as well as PHP 8.0. The difference should be negligible for most application...
If the input arrays contain numeric keys, the later value will be appended instead of overriding the original value. Version: (PHP 4 and above) Syntax: array_merge_recursive(array_name1, array_name2...) Parameters: Return value: The merged array. ...
PHP 官方的文档只是简单做了它们功能的介绍,没有对他们直接之间的区别做了详细介绍,所以首先用一图来描述它们之间的区别: 几点使用细节: 1. 对于关联数组来说,array_merge和array_replace的效果是一样的,从技术上说完全可以互换: // associative arrays 关联数组array_replace($a,$b)===array_merge($a,$b) ...
The array_merge() function used to merge one ore more arrays. If the input arrays have matching string keys, then the later value will override it's previous counterpart. If the input arrays contain numeric keys, the later value will be appended instead
/** mediawiki-extensions-Arrays-REL1_37 ExtArrays.php * Merge values two arrayes identified by arrayid1 and arrayid2 into a new array identified by arrayid_new. * This merge differs from array_merge of php because it merges values. * * Usage: * {{#arraymerge:arrayid_new |array1 |...
Merging arrays in php keeping the keys Say you have two arrays with the following values in them: $array1 =array(13=>'bad luck',7=>'billion people'); $array2 =array(1=>'number'); And you want the final result to be $final = (1=>'number',13=>'billion people',13=>'bad luck...