显示html代码的函数
php函数
<?php $html = htmlspecialchars("<a href='text'>test</a>"); echo $html; ?>
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nl2br()
?把'\n'换行用<br/>or<br>代替插入内容
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example:
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<?php echo nl2br("an apple is red \n you agree with me"); //an apple is red<br/>you agree with me?>?
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