"Red","b"=>"Green","c"=>"Yellow"); print_r($testarr); unset($testarr[array_search("Green",$testarr)]);//array_search("Green",$testarr)按元素值返回键名。去除后保持索引 print_r($testarr); ?>

查看array_search用法

显示结果

去除前：

Array

(

[a] => Red

[b] => Greed

[c] => Yellow

)

去除后：

Array

(

[a] => Red

[c] => Yellow

)