PHP print类似PHP echo语句,但是PHP print是一个语言结构(因为有返回值,可以认为它是函数),所以也不需要使用括号和参数列表。与echo不同,它总是返回1。

PHP print的语法如下:

int print(string $arg)

PHP print语句可以用来打印字符串,多行字符串,转义字符,变量,数组等。

PHP print:打印字符串

File:print1.php

<?php
   print "Hello by PHP print ";
   print ("Hello by PHP print()");
?>

执行上述代码输出以下结果:

Hello by PHP print Hello by PHP print()

PHP print:打印多行字符串

File:print2.php

<?php
   Print " Hello by PHP print
this is multi line
text printed by
PHP print statement
";
?>

执行上述代码输出以下结果:
File:print3.php

Hello by PHP print this is multi line text printed by PHP print statement

PHP print:打印转义字符

File: print3.php

<?php
   print "Hello escape \"sequence\" characters by PHP print";
?>

执行以上代码输出以下结果:

Hello escape "equence" characters by PHP print

PHP print :打印变量值

File:print4.php

<?php
   $msg = "Hello print() in PHP";
   print " Message is: $msg";

执行以上代码输出以下结果:

Message is: Hello print() in PHP