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php 按指定元素值去除数组元素的实现方法

Jun 13, 2016 pm 12:04 PM


按指定元素值去除数组元素

代码如下:

<?php 
//去除值为"Cat"的元素 
$a=array("a"=>"Dog","b"=>"Cat","c"=>"Horse"); 
print_r($a); 
unset($a[array_search("Cat",$a)]);//array_search("Cat",$a)按元素值返回键名。去除后保持索引 
print_r($a); 
?>
Copy after login


查看array_search用法

显示结果

去除前:

Array 
( 
[a] => Dog 
[b] => Cat 
[c] => Horse 
)
Copy after login

去除后:

Array 
( 
[a] => Dog 
[c] => Horse 
)
Copy after login

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