php函数
function">htmlspecialchars()
? nl2br() ?把'\n'换行用<br/>or<br>代替插入内容 ? example: ?<?php
$html = htmlspecialchars("<a href='text'>test</a>");
echo $html;
?>
<?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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