Php-commond.md

function:打乱一维数组

function shuffle_assoc($list) {
if (!is_array($list)) return $list;
$keys = array_keys($list);
shuffle($keys);
$random = array();
foreach ($keys as $key)
$random[$key] = $list[$key];
return $random;
}

function:打乱多维数组

function rec_assoc_shuffle($array){
$ary_keys = array_keys($array);
$ary_values = array_values($array);
shuffle($ary_values);
foreach($ary_keys as $key => $value) {
if (is_array($ary_values[$key]) AND $ary_values[$key] != NULL) {
$ary_values[$key] = rec_assoc_shuffle($ary_values[$key]);
}
$new[$value] = $ary_values[$key];
}
return $new;
}

function:判断是否是ajax请求

public static function is_ajax_request(){ if (isset($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest') { return 1; } else { return 2; } }

function:日期时间处理

public function show_time($show_time){ if(strlen($show_time) == 19){ $show_time = strtotime($show_time); } $dur = time() - $show_time; if($dur <=0){ return '0秒前'; }else{ if($dur < 60){ return $dur.'秒前'; }else{ if($dur < 3600){ return floor($dur/60).'分钟前'; }else{ $current_time = date("Y-m-d",time()); $date = date("Y-m-d",$show_time); if($current_time == $date){ return "今天 ".date("H:i",$show_time); }else{ $current_year = date("Y",time()); $year = date("Y",$show_time); if($current_year == $year){//一年内 return date("m-d H:i",$show_time); }else{ return date("Y-m-d H:i",$show_time); } } } } } }

function:正则密码（至少一个大写字母，一个小写字母，一个数字，一个特殊符号，6-16位）

public function checkPassword(){ $subject = 'Ly44444@'; if(preg_match('/(?=.[0-9])(?=.[a-z])(?=.[!@#$%^&])(?=.*[A-Z]).{6,16}/',$subject)){ echo 'gg';die(); } }