To check if an element exists in a PHP array, you can use the in_array($search, $array, $mode) function. The $search parameter specifies the element or value to search in the specified array and can be of a mixed type (string, integer, or other types). If the parameter is a stri...
if ( ($element === $search_for) || (is_array($element) && multi_array_search($search_for, $element)) ){ return true; } } return false; } $arr = array("2014", array("January", "February", "March"), "2015", array("Monday", "Tuesday")); echo multi_array_search("Tuesday"...
PHP array_key_exists() Function The PHP array_key_exists() function checks if a specific key exists in the array. The function returns TRUE if the key is present, else it returns FALSE. array_key_exists() function works for both indexed arrays and associative arrays. For indexed arrays, ...
The 'first' element is found in the array Check if Key Exists in PHP Array Using theisset()Function PHP provides functionisset(), which determines if a variable is set; this means if a variable is declared and assigned value other than null.isset()will return false when a variable has ...
Checking if an Element Is in an Array (PHP Cookbook)David SklarAdam Trachtenberg
$message = urlencode($msg); //Define route $route = "template"; //Prepare you post parameters $postData = array( 'authkey' => $authKey, 'mobiles' => $mobileNumber, 'message' => $message, 'sender' => $senderId, 'route' => $route ); //API URL $url="https://control.msg91...
$users->first()->toArray(); = User::first()->toArray之间有什么区别? $users->last()->toArray(); = User::last()->toArray之间有什么区别? $users->all()则不再访问数据库,因为User::all()已经返回了数据 App\User::first(['name']);=> App\User {#704name: "cnwedd",}//注意这个操...
4) 移除 Call-time pass by reference(如 call_user_func_array('function', array(&$a) 不支持) 5)break/continue 不接受参数,但保留接受静态参数 6)必须设置时区timezone 7) 注意非数字数组键值 详看:PHP5.4中一个需要注意的变化(Chained string offsets) 8) 数组转字符串提示 E_NOTICE level err...
array_diff()---返回两个数组的差集数组 array_intersect()---计算数组的交集 array_search()---在数组中搜索给定的值 array_splice()---移除数组的一部分且替代它 array_key_exists()---判断某个数组中是否存在指定的key shuffle()---把数组中的元素按随机顺序重新排列 array_flip...
("error",'SQL_ERROR'); + + $configs=array(); + while($row=$sql->fetch_assoc()){ + $configs[$row['name']]=$row['value']; + } + array_key_exists($configName,$configs) or returnInfoData("error","No found config"); + + return $configs[$configName]; +} + +function ...