phpclassCar{var$color;functionCar($color="green"){$this->color=$color;}functionwhat_color(){return$this->color;}}functionprint_vars($obj){foreach(get_object_vars($obj)as$prop=>$val){echo"\t$prop = $val\n";}}// instantiate one object$herbie=newCar("white");// show herbie proper...
phpclassCar{public$type;private$color;}// 👇 check class propertyvar_dump(property_exists("Car","type"));// true// 👇 check object propertyvar_dump(property_exists(newCar(),"color"));// true// 👇 instantiate the object first$car=newCar();var_dump(property_exists($car,"wheels")...
(is_object($params[1]) && method_exists($params[1], '__toString')) ) { trigger_error('array_column(): The column key should be either a string or an integer', E_USER_WARNING); return false; } if (isset($params[2]) && !is_int($params[2]) && !is_float($params[2]) &&...
配置参数说明---prefix=/usr/local/php 安装路径--with-config-file-path=/usr/local/php/etc 配置文件路径--with-mysqli=mysqlnd--enable-embedded-mysqli--with-mysql-sock=/usr/local/mysql/mysql支持及客户端设置--enable-pdo--with-pdo-mysql=mysqlnd 开启php pdo,PDO一是PHP数据对象(PHPData Object)的...
// Check if a header exists. if ($response->hasHeader('Content-Length')) { echo "It exists"; } // Get a header from the response. echo $response->getHeader('Content-Length'); // Get all of the response headers. foreach ($response->getHeaders() as $name => $values) { echo ...
$default : null;}} else {$filters = explode(',', $filters);}} elseif (is_int($filters)) {$filters = array($filters);}if (is_array($filters)) {foreach ($filters as $filter) {if (function_exists($filter)) {$data = is_array($data) ? array_map_recursive($filter, $data) :...
对应laravel中的facade及其函数是Hash::make(),Hash::check(),其底层使用了 github.com/ircmaxell/password_compat这个package Redirect::intended() 对于保护的路由,我们有这样的需求:一旦用户登录并且有权访问这个路由的话,我们希望直接redirect到先前的这个路由,这里Redirect::intended()就是满足这个场景的。
You may check for the existence of a table or column using the hasTable and hasColumn methods:1if (Schema::hasTable('users')) { 2 // The "users" table exists... 3} 4 5if (Schema::hasColumn('users', 'email')) { 6 // The "users" table exists and has an "email" column.....
// 不指定x-oss-forbid-overwrite时,默认覆盖同名Object。// 指定x-oss-forbid-overwrite为false时,表示允许覆盖同名Object。// 指定x-oss-forbid-overwrite为true时,表示禁止覆盖同名Object,如果同名Object已存在,则报错FileAlreadyExists。$options=array(OssClient::OSS_HEADERS=>array('x-oss-fo...
exists Description: Verify if the specified key exists. Parameters key Return value long: The number of keys tested that do exist. Examples $redis->set('key', 'value'); $redis->exists('key'); /* 1 */ $redis->exists('NonExistingKey'); /* 0 */ $redis->mset(['foo' => 'foo'...