如何检查变量值是否在数组中？

Question

如何用数组检查php变量？

$user_check = "ccc";

时

<?php
    $user_group = array('aaa' , 'bbb' , 'ccc' , 'ddd');
    $name_group = join("','",$user_group); 

    if ($name_group != $user_check) { 
        echo "not found." 
    } else { 
        echo "found." 
    }
?>

Answer 1

尝试in_array()

if (in_array($user_check,$user_group))
{ echo "found."; }
else
{ echo "Not found."; }

查看此link上的文档。

Answer 2

使用in_array功能

if ( in_array($user_check, $user_group) ) {
   echo "found."
} else { 
  echo "not found."
}