Definition and Usage
定义和用法

The print() function outputs one or more strings.
print()函数的作用是：输出字符串。

Syntax
语法

print(strings)

Tips and Notes
提示和注意点

Note: The print() function is not actually a function, so you are not required to use parentheses with it.
注意：print()函数并不是一个真正意义上的函数，所以你不一定需要再声明它的时候加上圆括号“()”

Tip: The print() function is slightly slower than echo().
提示：print()函数的运行速度比echo()函数稍慢一些。

Example 1
案例1

<?php
$str = "Who's Kai Jim?";
print $str;
print "<br />";
print $str."<br />I don't know!";
?> 

The output of the code above will be:
上述代码将输出下面的结果：

Who's Kai Jim?
Who's Kai Jim?
I don't know!

Example 2
案例2

<?php
print "This text
spans multiple
lines.";
?>

The output of the code above will be:
上述代码将输出下面的结果：

This text spans multiple lines.

Example 3
案例3

Difference of single and double quotes. Single quotes will print the variable name, not the value:
比较单引号（'）和双引号（"）的不同点。使用单引号（'）输出的是变量名，而不是变量值：

<?php
$color = "red";
print "Roses are $color";
print "<br />";
print 'Roses are $color';
?> 

The output of the code above will be:
上述代码将输出下面的结果：

Roses are red
Roses are $color

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