Here's a simple calculation using variables:<?php $variable1 = 2; $variable2 = 9; $variable3 = $variable1 + $variable2; echo $variable3; ?>The above code results in the following:11 ConcatenationWhen outputting multiple variables and other text to the screen, you can concatenate them (...
echo is marginally faster than print. echo Display Text 1<?php2echo"PHP is Fun!";3echo"Hello world!";4echo"I'm about to learn PHP!";5echo"This ", "string ", "was ", "made ", "with multiple parameters.";6?> echo Display Variables 1<?php2$txt1= "Learn PHP";3$txt2= "W3...
echo"What a nice day!"; ?> Try it Yourself » Example Join two string variables together: <?php $str1="Hello world!"; $str2="What a nice day!"; echo$str1 ." ". $str2; ?> Try it Yourself » Example Write the value of an array to the output: <?php...
get_defined_vars()—返回由所有已定义变量所组成的数组,这个函数在二次开发的时候用起来非常给力; get_defined_constants();可以返回当前的所有常量 zend的调试也能实现当前页面所有变量的显示; 以下代码示例,我在方维分享系统的这个链接的html里http://localhost/xiebei/admin/index.php?a=login&m=Public加了这样...
$x = "John"; echo $x; Try it Yourself » String variables can be declared either by using double or single quotes, but you should be aware of the differences. Learn more about the differences in the PHP Strings chapter.Assign Multiple ValuesYou...
echo - Echo the given string connect, open Description: Connects to a Redis instance. Parameters host: string. can be a host, or the path to a unix domain socket. Starting from version 5.0.0 it is possible to specify schema port: int, optional timeout: float, value in seconds (optional...
echo'Destroying: ',$this->name,PHP_EOL; } } // create two Foo objects: $foo= newFoo('Foo 1'); $bar= newFoo('Foo 2'); // make them point to each other $foo->setLink($bar); $bar->setLink($foo); // destroy the global references to them ...
echoCONSTANT;// 输出 My\Full\CONSTANT 的值 ?> 注意对命名空间中的名称(包含命名空间分隔符的完全限定名称如Foo\Bar以及相对的不包含命名空间分隔符的全局名称如FooBar)来说,前导的反斜杠是不必要的也不推荐的,因为导入的名称必须是完全限定的,不会根据当前的命名空间作相对解析。
$fiber=newFiber(function(){Fiber::suspend(42);});$return=$fiber->start();echo $return; 输出`` 调用时 Fiber::suspend() ,光纤在该表达式处暂停。在从内存中删除 Fiber 对象本身之前,不会清除局部变量、数组指针等。下一个调用从下一个 Fiber::resume 表达式继续程序。
Yeah, I know my code isveryold with no separation of concerns (most of it written before PHPStorm was even invented), but it works, and I can't immediately refactor it all, so bear with me. Much of the HTML markup is output with PHP echo st...