return "<!DOCTYPE html> $title $content "; 返回值 PHP 中的return语句非常有用。它只是停止脚本的执行。将返回紧跟在return语句之后的任何值。在前面的示例中,将返回一个有效的 HTML5 页面。 包括模板 要使用索引中的模板,您必须将脚本加载到 PHP 的内存中。您可以用另一个 PHP 语句来做这件事:...
All other values will return false:1$archived = $request->boolean('archived');Retrieving Date Input ValuesFor convenience, input values containing dates / times may be retrieved as Carbon instances using the date method. If the request does not contain an input value with the given name, null...
<?php /** * Translation map for nl-NL */ return [ 'welcome' => 'welkom' ]; 文件映射(File mapping) fileMap 来映射一个类别到不同名称的 PHP 文件。 在上面的例子中,类别 app/error 被映射到PHP文件 @app/messages/ru-RU/error.php(假设 ru-RU 为目标语言)。如果没有此配置,该类别将被...
(idINTUNSIGNEDAUT_INCREMENTkey,usernamevarchar(20)notnullunique,passwordCHAR(32)notnull,emailvarchar(30)notnull);EOF;$res=$pdo->exec($sql);var_dump($res);$sql='insert user(username,password,email) values ('dashu',"'.md5('dashu').'","23@qq.com")'));}catch(PDOException $e){echo ...
in step 3,Now, you might wonder what would happen if the variablecgetschanged.Twothingsmighthappen,dependingonthevalueoftherefcount.Ifthevalueis1,thenthecontainersimplygetsupdatedwithitsnewvalue(andpossiblyitstype,too).Incasetherefcountvalueislargerthan1,anewvariablecontainergetscreatedcontainingthenewvalue...
21 if (Auth::attempt($credentials)) { 22 // Authentication passed... 23 return redirect()->intended('dashboard'); 24 } 25 } 26}The attempt method accepts an array of key / value pairs as its first argument. The values in the array will be used to find the user in your database...
!==: check if two values are NOT equal. The comparison is done is strict mode. >: check if value being validated is greater than the value being compared with. >=: check if value being validated is greater than or equal to the value being compared with. <: check if value being vali...
They are both types of expressions, because they return a value. Example 4-3 shows three literals and two variables, all of which return values, albeit of different types. Example 4-3. Literals and variables <?php $myname = "Brian"; $myage = 37; echo "a: " . 73 . ""; // Num...
// define variables and set to empty values $name = $email = $gender = $comment = $website = ""; if ($_SERVER["REQUEST_METHOD"] == "POST") { $name = test_input($_POST["name"]); $email = test_input($_POST["email"]); $website = test_input($_POST["website"]); $com...
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 -...