<?php function square($num) { return $num * $num; } echo square(4); // outputs '16'. ?> A function can not return multiple values, but similar results can be obtained by returning an array. Example #2 Returning an array to get multiple values 代码语言:javascript 复制 <?php funct...
It wouldn’t sound too obvious but sometimes your function might need to return multiple values. For instance, in one of the applications I’m working on, I have a JavaScript function where I have to calculate two different values and return them.
return require include require_once include_once goto 函数 用户自定义函数 函数的参数 返回值 可变函数 内部(内置)函数 匿名函数 类与对象 简介 基本概念 属性 类常量 类的自动加载 构造函数和析构函数 访问控制(可见性) 对象继承 范围解析操作符 (::) Static(静态)关键字 抽象类 对象接口 Trait 匿名类 重...
Note: If the method is called several times, you can use the following syntax to return different values for each call:$prophecy->read('123')->willReturn(1, 2, 3); This feature is actually not recommended for most cases. Relying on the order of calls for the same arguments tends to ...
class CarUrlRule extends CBaseUrlRule { public $connectionID = 'db'; public function createUrl($manager,$route,$params,$ampersand) { if ($route==='car/index') { if (isset($params['manufacturer'], $params['model'])) return $params['manufacturer'] . '/' . $params['model']; else...
a 函数说明 abs 绝对值 acos 反余弦 acosh 反双曲余弦 addcslashes 以 C 语言风格使用反斜线转义字符串中的字符 addslashes 使用反斜线引用字符串 apache_child_terminate 在本次请求结束后终止 apache 子进程 apache_geten
An array stores multiple values in one single variable. In the following example$carsis an array. The PHPvar_dump()function returns the data type and value: Example $cars=array("Volvo","BMW","Toyota");var_dump($cars); Try it Yourself » ...
(当然,MySQL的内部实现我没看过,这两个任务不一定是互相独立的。)如果要比较专业解释的话,请参看MySQL的官方文档: You cannot use a column with RAND() values in an ORDER BY clause, because ORDER BY would evaluate the column multiple times. However, you can retrieve rows in random order like ...
return statement to redirect user to the bank page.return$payment->purchase($invoice,function($driver,$transactionId) {// Store transactionId in database as we need it to verify payment in the future.})->pay()->render();// Do all things together in a single line.return$payment->...
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 -...