php echo 输出字符串函数的解决办法
内容摘要
这篇文章主要为大家详细介绍了php echo 输出字符串函数的简单示例，具有一定的参考价值，可以用来参考一下。
对此感兴趣的朋友，看看idc笔记做的技术笔记！
代码如下:
//php教程
对此感兴趣的朋友，看看idc笔记做的技术笔记！
代码如下:
//php教程
文章正文
这篇文章主要为大家详细介绍了php echo 输出字符串函数的简单示例，具有一定的参考价值，可以用来参考一下。
对此感兴趣的朋友，看看idc笔记做的技术笔记！
代码如下:
//php教程网 Www.512Pic.com
echo "asd";//字符串
echo "ads$c";//字符串+变量
echo 'ads$c';//字符串 asd$c $c不是变量
echo "sd"."vs";
echo "sd","vs";
echo $a;
echo $a.$b;
echo $a,$b;
echo $a.$b.$c;
echo $a,$b,$c;
echo "kaskd{$c}asd";
echo "kakskd{$arr['lo']}";
echo "kakskd{$obj->a}";
echo "kaskd".$c."kasd";
echo "kaskd".$arr['lo']."kasd";
echo "kaskd".$obj->a."kasd";
echo "kaskd".func($c)."kasd";
echo "kaksk".($a+1)."dkkasd";
echo $c."jaksd";
echo $c,"jaksd";
//php多行输出方法
echo <<<END
This uses the "here document" syntax to output
END;
//输出简写
<?php echo $a;?> <?=$a?>
代码如下:
<?php
//php教程网 Www.512Pic.com
echo "Hello World";
echo "This spans
multiple lines. The newlines will be
output as well";
echo "This spans\nmultiple lines. The newlines will be\noutput as well.";
echo "Escaping characters is done \"Like this\".";
// You can use variables inside of an echo statement
$foo = "foobar";
$bar = "barbaz";
echo "foo is $foo"; // foo is foobar
// You can also use arrays
$baz = array("value" => "foo");
echo "this is {$baz['value']} !"; // this is foo !
// Using single quotes will print the variable name, not the value
echo 'foo is $foo'; // foo is $foo
// If you are not using any other characters, you can just echo variables
echo $foo; // foobar
echo $foo,$bar; // foobarbarbaz
// Some people prefer passing multiple parameters to echo over concatenation.
echo 'This ', 'string ', 'was ', 'made ', 'with multiple parameters.', chr(10);
echo 'This ' . 'string ' . 'was ' . 'made ' . 'with concatenation.' . "\n";
echo <<<END
This uses the "here document" syntax to output
multiple lines with $variable interpolation. Note
that the here document terminator must appear on a
line with just a semicolon. no extra whitespace!
END;
// Because echo does not behave like a function, the following code is invalid.
($some_var) ? echo 'true' : echo 'false';
// However, the following examples will work:
($some_var) ? print 'true' : print 'false'; // print is also a construct, but
// it behaves like a function, so
// it may be used in this context.
echo $some_var ? 'true': 'false'; // changing the statement around
?>
以下是官方手册说明：Definition and Usage定义和用法The echo() function outputs one or more strings.echo()函数的作用是：输出一个或多个字符串。Syntax语法echo(strings)Parameter参数 Description描述strings Required. One or more strings to be sent to the output必要参数。指定一个或多个需要被发送到结果中的字符串Tips and Notes提示和注意点Note: The echo() function is not actually a function, so you are not required to use parentheses with it. However, if you want to pass more than one parameter to echo(), using parentheses will generate a parse error.注意：echo()函数不是一个真正意义上的函数，所以你没有必要一定去使用它。如果你想把多于一个的参数传递给echo()函数，那么使用圆括号“()”将产生错误。Tip: The echo() function is slightly faster than print().提示：echo()函数相当于print()函数的简化版本。Tip: The echo() function has the following shortcut syntax. See example 5.提示：echo()函数包含下面的简便写法。具体见：案例5。Example 1案例1
代码如下:
<?php
$str = "Who's Kai Jim?";
echo $str;
echo "<br />";
echo $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
代码如下:
<?php
echo "This textspans multiplelines.";
?>
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
代码如下:
<?php
echo 'This ','string ','was ','made ','with multiple parameters';
?>
The output of the code above will be:上述代码将输出下面的结果：This string was made with multiple parametersExample 4案例4Difference of single and double quotes. Single quotes will print the variable name, not the value:区别单引号(')和双引号(”)的不同。单引号将输出变量名，而不是变量的值：
代码如下:
<?php
$color = "red";
echo "Roses are $color";
echo "<br />";
echo '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 redRoses are $colorExample 5案例5Shortcut syntax:简写（捷径）语法：
代码如下:
<html><body>
<?php
$color = "red";
?><p>Roses are <?=$color?></p></body></html>
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作者：喵哥笔记
