array(key=>value,key=>value,key=>value,etc.);参数描述 key 规定键名(数值或字符串)。 value 规定键值。技术细节返回值: 返回参数的数组。 PHP 版本: 4+ 更新日志: 自PHP 5.4 起,可以使用短数组语法,用 [] 代替 array()。 例如,用 $cars=["Volvo","BMW"]; 代替 $cars=array("Volvo","BMW");...
array_combine: 将两数组合并,一个数组作为键,一个数组作为值 array_fill_keys: 将arr1的值作为key, arr2的值作为value, 返回新数组 compact: 将现存的变量包含到数组中 range: 按照给定的范围创建数组 详细说明 array_change_key_case($arr, $case=CASE_LOWER): 将数组键名修改为全大写或全小写, 返回是否...
array_combine — 创建一个数组,用一个数组的值作为其键名,另一个数组的值作为其值 array_count_values — 统计数组中所有的值出现的次数 array_diff_assoc — 带索引检查计算数组的差集 array_diff_key — 使用键名比较计算数组的差集 array_diff_uassoc — 用用户提供的回调函数做索引检查来计算数组的差集 arra...
在这个简单的实例中,我们用array()来创建了一个$array的数组,里面的‘a’~‘f’为数组的key(键),‘1’~‘6’为value(数值),var_dump是打印这个数组。 在右边界面你就可以看到显示出来的数据,你可以用count($array)或者sizeof($array)来打印出当前数组的length;在往数组中添加值可以这样子:$array[]=7;然...
return call_user_func_array([$pdo, $name], $arguments); } private static function initializePool(): void { self::$pool = new Pool(10); self::$pool->setConnectionCreator(function () { return new \PDO('mysql:host=127.0.0.1;dbname=your_database'...
Within your mail configuration file, you will find a mailers configuration array. This array contains a sample configuration entry for each of the major mail drivers / transports supported by Laravel, while the default configuration value determines which mailer will be used by default when your ...
[$name[0]][$name[1]]) ? $_config[$name[0]][$name[1]] : $default;}$_config[$name[0]][$name[1]] = $value;return null;}// 批量设置if (is_array($name)) {$_config = array_merge($_config, array_change_key_case($name, CASE_UPPER));return null;}return null; // 避免...
By default, the timeout values are in seconds, but you can add an explicit unit of time after the value:msfor milliseconds,sfor seconds,mfor minutes, for example100 msor5 m. note You can also change these timeouts at the IDE level, using VM options (Help | Edit Custom VM Options)....
auth (string, or an array with one or two elements): used to authenticate with the server prior to sending commands. database (integer): selects a different database. Sessions have a lifetime expressed in seconds and stored in the INI variable "session.gc_maxlifetime". You can change it...
Key / Value Order Change Thefirst,last, andwheremethods on theArrclass, in addition to their associated global helper functions, now pass the "value" as the first parameter to the given callback Closure. For example: 1Arr::first($array,function($value,$key){ ...