It is also the most usable command of PHP. There are two main methods for getting output in PHP:echoandprint. The echo and print are the same. Both have the main work of displaying the output on the screen You need to return the output or void in output; then, you can use the ech...
The following example shows how to output text with the echo command (notice that the text can contain HTML markup):<?phpecho "<h2>PHP is Fun!</h2>";echo "Hello world!<br>";echo "I'm about to learn PHP!<br>";echo "This ", "string ", "was ", "made ", "with multiple para...
我们先来看一下for语句的基本要素都有些什么: 1、for、in和do是for语句的关键字,它们三个缺一不可; 2、%%I是for语句中对形式变量的引用,就算它在do后的语句中没有参与语句的执行,也是必须出现的...; 3、in之后,do之前的括号不能省略; 4、command1表示字符串或变量,command2表示字符串、变量或命令语句;现...
As you saw in the previous lesson, the PHP command Advertise on Tizag.com Outputting a String To output a string, like we have done in previous lessons, use PHP echo. You can place either a string variable or you can use quotes, like we do below, to create a string that the echo f...
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Here are some examples of theechocommand in action: // Output "Hello" to the screen echo "Hello"; // Output multiple strings to the screen - note the spaces are added as echo will not add them itself echo "Hello, ", "it ", "is ", "a ", "nice ", "day."; ...
For instance, you will get all .html files currently in the directory using the command below: echo The PHP files are: *.htmlCopyThe PHP files are: index.html contact.html functions.htmlCopy Copy 7. Displaying a text line with a single quote If you want to print a single quote, you ...
echo这个命令加以进一步说明。温习下标准的command line包含三个部分: * command_name option argumentecho是一个非常简单、直接的Linux 命令: * 将argument送出至标准输出(STDOUT),通常就是在监视器(monitor)上输出 echo 数值计算 换行符 控制字符 十六进制 ...
输出:The only true wisdom is in knowing you know nothing. Socrates 示例7:显示变量 echo也可以显示变量。比如,我们想要显示当前登录用户的名称echo $USER 输出:linuxuser 说明:$USER是一个shell变量。 示例8:显示命令输出 使用$(command)表达式将命令输出作为参数传递给echo。以下命令将显示当前日期:echo "The ...