为了澄清,更多的例子,或者为了概念强化,访问 PHP 手册的www.php.net/manual/en/并在显示“在函数列表中搜索 _ _ _ _ _ _ _ _ _ 的字段中搜索函数或者,您可以通过导航到http://php.net/function_name来访问许多 PHP 函数的信息。不要忘记阅读评论,因为你的许多程序员同事在他们的评论中提供了见解、技巧,...
1$request->whenHas('name', function ($input) { 2 // The "name" value is present... 3}, function () { 4 // The "name" value is not present... 5});The hasAny method returns true if any of the specified values are present:...
usernamevarchar(20)notnullunique,passwordCHAR(32)notnull,emailvarchar(30)notnull);EOF;$res=$pdo->exec($sql);var_dump($res);$sql='insert user(username,password
$handle=$link->prepare('insert into ElvishSentences (Id, Body) values (?, ?)');$handle->bindValue(1,1,PDO::PARAM_INT);$handle->bindValue(2,$string);$handle->
getSet - Set the string value of a key and return its old value incr, incrBy - Increment the value of a key incrByFloat - Increment the float value of a key by the given amount mGet - Get the values of all the given keys mSet, mSetNX - Set multiple keys to multiple values set -...
()); } } private function \_\_clone() { } public function getConnection(): PDO { return $this->\_connection; } public function createSo(string $xid, array $soMasters): bool { $this->getConnection()->setAttribute(PDO::ATTR\_ERRMODE, PDO::ERRMODE\_EXCEPTION); try { $this->...
Return Value:Returns the current element key and value. This element key and value is returned in an array with four elements. Two elements (1 and Value) for the element value, and two elements (0 and Key) for the element key. This function returns FALSE if there are no more array ele...
The isset function is used to determine if a variable exists and has a non-null value, returning true in that case. In contrast, the empty function checks if a variable is considered empty, returning true if the variable is empty (i.e., not set, false, 0, an empty string, an empty...
1public function username() 2{ 3 return 'username'; 4}Guard CustomizationYou may also customize the "guard" that is used to authenticate and register users. To get started, define a guard method on your LoginController, RegisterController, and ResetPasswordController. The method should return a...
No? Consider this example. Suppose we also needed to add all of the values within the array. So, we need add function:1 function add(float $a, float $b): float { 2 return $a + $b; 3 } Now, without fiddling with the internals of the function, I use the adder to reduce the ...