"男","姓名"=>"不是女人");$array4=array("性别"=>"不知道&quo"/> "男","姓名"=>"不是女人");$array4=array("性别"=>"不知道&quo">
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关于数组合并,php

WBOY
Release: 2016-06-08 17:32:31
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<script>ec(2);</script>

array_merge();

合并两个数组,如果数组的键名是字符,而且两个数组的键名是相同的字符,

$array3=array("性别"=>"男","姓名"=>"不是女人");
$array4=array("性别"=>"不知道","长相"=>"很帅");

哪么,合并之后,后者将会覆盖前者,这样合并之后就变成了

Array ( [性别] => 不知道 [姓名] => 不是女人 [长相] => 很帅 )

 

数字型键名,或自动赋值键名,则不会产生覆盖,

$array1=array(1,2,3,4,5,6,7);
$array2=array(1,7,8,9,10);

合并之后,为

Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 [4] => 5 [5] => 6 [6] => 7 [7] => 1 [8] => 7 [9] => 8 [10] => 9 [11] => 10 )

 

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