With Fibers, the code block within the Fiber can suspend the code block and return any data back to the main program. The main program can resume the Fiber from the point it was suspended. 使用Fibers,Fiber 中的代码块可以挂起代码块并将任何数据返回给主程序。主程序可以从光纤挂起的位置恢复光纤。
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.
public static functionfromBasicData(int $id,string $name): static { $new= new static($id,$name); return$new; } public static functionfromJson(string $json): static { $data=json_decode($json,true); return new static($data['id'],$data['name']); } public static functionfromXml(strin...
All three of these functions can be accessed simply by sending a specially formatted URI that includes parameters for the function. The Locations API can return results as either JSON or XML. For the purposes of this article, we will get results in XML format because we found it easier...
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
Like other headers, cookies must be sent before any output from your script (this is a protocol restriction). This requires that you place calls to this function prior to any output, including <html> and <head> tags as well as any whitespace. Once the cookies have been set, they can ...
Returning Values from a Function A function can return a value back to the script that called the function using the return statement. The value may be of any type, including arrays and objects. Example Run this code» <?php// Defining functionfunctiongetSum($num1,$num2){$total=$num1...
When calling theCache::extendmethod with a Closure,$thiswill be bound to theCacheManagerinstance, allowing you to call its methods from within your extension Closure: 1Cache::extend('memcached',function($app,$config){ 2try{ 3return$this->createMemcachedDriver($config); ...
If the dbh member methods is NULL (which implies that the error is being raised from within the PDO constructor), this function should call the zend_throw_exception_ex() function otherwise it should return the error code. This function is usually called using a helper macro that customizes ...
Description: Disconnects from the Redis instance. Note: Closing a persistent connection requires PhpRedis >= 4.2.0. Parameters None. Return value BOOL: TRUE on success, FALSE on failure. setOption Description: Set client option. Parameters parameter name parameter value Return value BOOL: TRUE on...