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is_array -- 检测变量是否是数组

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Release: 2016-06-08 17:28:54
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is_array -- 检测变量是否是数组
 描述
 bool is_array ( mixed var)
 
 
 如果 var 是 array,则返回 TRUE,否则返回 FALSE。

 is_array($array)
 判断一个值是否为数组
 */
 $array = array('','');
 if( is_array( $array ) )
 {
  echo 'is array';
 }
 
 // 输出结果 is array
 
 $str ='';
 if( is_array( $str ) )
 {
  echo 'is array';
 }
 else
 {
  echo 'is string';
 }
 
 //输出结果为is string

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