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 />
$bodytext = str_replace("%body%", "black", "<body text='%body%'>");<br />var_dump($bodytext);
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