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Home > Backend Development > PHP Tutorial > str_replaced函数的有关问题

str_replaced函数的有关问题

WBOY
Release： 2016-06-13 12:24:31
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str_replaced函数的问题？

<br />$bodytext = str_replace("%body%", "black", "<body text='%body%'>");<br />var_dump($bodytext);<br />echo str_replace("world","John","Hello world!");<br />
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输出

为什么var_dump($bodytext)会输出string(19) ""；是那里错了？设置还是语法？
------解决思路----------------------
$bodytext = str_replace("%body%", "black", "<body text='%body%'>");<br />var_dump($bodytext);
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string(19) "

"

你只看到 string(19) ""  的原因是：你用浏览器查看时， 被当做 html 标记解释了，所以看不见
Related labels：
black body nbsp replace
source：php.cn
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