phpif($argc!=2){echo"Usage: php hello.php [name].\n";exit(1);}$name=$argv[1];echo"Hello,$name\n"; PHP 会在脚本运行时根据参数设置两个特殊的变量,$argc是一个整数,表示参数个数,$argv是一个数组变量,包含每个参数的值, 它的第一个元素一直是 PHP 脚本的名称,如本例中为hello.php。 命令...
elseif/else if 流程控制的替代语法 while do-while for foreach break continue switch declare 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(...
AnyValuesToken or Argument::cetera() - matches any arguments to the rest of the signature StringContainsToken or Argument::containingString($value) - checks that the argument contains a specific string value InArrayToken or Argument::in($array) - checks if value is in array NotInArrayToken ...
Note: If the return is omitted the value NULL will be returned. Use of return Example #1 Use of return 代码语言:javascript 复制 <?php function square($num) { return $num * $num; } echo square(4); // outputs '16'. ?> A function can not return multiple values, but similar result...
a 函数说明 abs 绝对值 acos 反余弦 acosh 反双曲余弦 addcslashes 以 C 语言风格使用反斜线转义字符串中的字符 addslashes 使用反斜线引用字符串 apache_child_terminate 在本次请求结束后终止 apache 子进程 apache_geten
Supported PHP SAPIs The following table shows the PHP Server Application Programming Interface (SAPIs) that the PHP sensor supports for configuration data, metrics, and tracing: Instana can provide tracing for CLI if you configure the tracing extension with the flaginstana.enable_cli = 1that is ...
You can configure the requiredcloud_name,api_key, andapi_secretby defining theCLOUDINARY_URLenvironment variable. Copy theAPI environment variableformat from theAPI Keyspage of the Cloudinary Console Settings. Replace<your_api_key>and<your_api_secret>with your actual values, while your cloud name ...
You will learn more about conditional testing in thePHP If...Else chapter. PHP Array An array stores multiple values in one single variable. In the following example$carsis an array. The PHPvar_dump()function returns the data type and value: ...
Choose what gateway you would like to use in your application. Then make that as default driver so that you don't have to specify that everywhere. But, you can also use multiple gateways in a project. // Eg. if you want to use zarinpal.'default'=>'zarinpal', ...
mSet, mSetNX - Set multiple keys to multiple values set - Set the string value of a key setBit - Sets or clears the bit at offset in the string value stored at key setEx, pSetEx - Set the value and expiration of a key setNx - Set the value of a key, only if the key does not...