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:...
Example 1: “Returning static values by-reference”. In Figure 10, we have a very small script with a return-by-reference function called definition(). This function simply returns an array that contains some elements. Returning by reference makes no sense here, as the exact same things would...
<?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...
!==: 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...
a 函数说明 abs 绝对值 acos 反余弦 acosh 反双曲余弦 addcslashes 以 C 语言风格使用反斜线转义字符串中的字符 addslashes 使用反斜线引用字符串 apache_child_terminate 在本次请求结束后终止 apache 子进程 apache_geten
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"; $myage = 37; echo "a: " . 73 . ""; // Num...
getSet - Set the string value of a key and return its old value incr, incrBy - Increment the value of a key incrByFloat - Increment the float value of a key by the given amount mGet - Get the values of all the given keys mSet, mSetNX - Set multiple keys to multiple values set -...
.circleci .github TSRM Zend benchmark build docs-old docs ext main pear sapi scripts tests win32 .editorconfig .gdbinit .gitattributes .gitignore CODING_STANDARDS.md CONTRIBUTING.md EXTENSIONS LICENSE NEWS README.REDIST.BINS README.md SECURITY.md ...
(idINTUNSIGNEDAUT_INCREMENTkey,usernamevarchar(20)notnullunique,passwordCHAR(32)notnull,emailvarchar(30)notnull);EOF;$res=$pdo->exec($sql);var_dump($res);$sql='insert user(username,password,email) values ('dashu',"'.md5('dashu').'","23@qq.com")'));}catch(PDOException $e){echo ...
Let it return another array with preserved keys and scaled values. Because the element of an array may be another array (and recursively deeper), we have to separate the scaling logic into a separate recursive function do_scale(). The logic for IS_LONG, IS_DOUBLE and IS_STRING is kept...