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开启OB缓存无效？求解。该如何处理
- WBOYOriginal
- 2016-06-13 12:42:51849browse
开启OB缓存无效？？？求解。
是这样的，php.ini的ob是关闭的，我直接运行下面的代码提示错误：
<?php<br />
echo "ok";<br />
header("content-type:text/html;charset=utf-8");<br />
echo "ook";<br />
?>以后输出：
ok<br /> Warning: <br /> Cannot modify header information - headers already sent by (output started at C:\php\apache\htdocs\static\test.php:1) in C:\php\apache\htdocs\static\test.php on line 4<br /> ook
加上ob_start()开启ob缓存，应该是没有错误了，我加上ob，代码如下：
<?php<br />
ob_start(); <br />
echo "ok";<br />
header("content-type:text/html;charset=utf-8");<br />
echo "ook";<br />
?>运行结果：
ok<br /> Warning: Cannot modify header information - headers already sent by (output started at C:\php\apache\htdocs\static\test.php:1) in C:\php\apache\htdocs\static\test.php on line 4<br /> ook
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