PHP에서 문자열을 직접 출력할 수 있나요?

echo(string $arg1[, string $...])

<?php
header(&#39;content-type:text/html;charset=utf-8&#39;);   
$str1 = &#39;hello&#39;;
echo $str1;
echo &#39;<br>&#39;;
$str2 = &#39;你好&#39;;
echo $str2;
echo &#39;<br>&#39;;
echo $str1.&#39;----&#39;.$str2.&#39;<br>&#39;;
?>

print(string $arg)

<?php
header(&#39;content-type:text/html;charset=utf-8&#39;);   
$str1 = &#39;hello&#39;;
$str2 = &#39;你好&#39;;
print($str1);
print &#39;<br>&#39;;
print($str2);
?>

die([string $status])
die(int $status)

<?php
    die(&#39;hello!&#39;);
?>

printf(string $format[, mixed $args[, mixed $... ]])

<?php
header(&#39;content-type:text/html;charset=utf-8&#39;);   
$str = &#39;php中文网&#39;;
$url = &#39;//m.sbmmt.com/&#39;;
$num = 789;
printf(&#39;欢迎访问%s，网站链接为：%s<br>&#39;, $str, $url);
printf(&#39;%0.3f<br>&#39;, $num);
?>

<?php
    $str = 3.1415926;
    $re1 = sprintf($str);
	$re2 = sprintf(&#39;%.2f&#39;, $str);
    print_r($re1);
	print_r("<br>");
	print_r($re2);
?>

<?php
    $a = array (&#39;a&#39; => &#39;apple&#39;, &#39;b&#39; => &#39;banana&#39;, &#39;c&#39; => array (&#39;x&#39;,&#39;y&#39;,&#39;z&#39;));
    print_r($a);
?>

<?php
header(&#39;content-type:text/html;charset=utf-8&#39;);   
$arr=array
(
    array("姓名"=>"张三","年龄"=>25,"性别"=>"男"),
    array("姓名"=>"李四","年龄"=>21,"性别"=>"男"),
    array("姓名"=>"娜娜","年龄"=>22,"性别"=>"女")
);
var_dump($arr);
?>