PHP如何將HTML字元跳脫?
在PHP中可以使用「htmlspecialchars()」函數將HTML字元跳脫,該函數的作用是將特殊字元轉換為HTML實體,其用法為「htmlspecialchars($string)」,其引數「$string」代表待轉換的字元。
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範例
<?php $new = htmlspecialchars("<a href='test'>Test</a>", ENT_QUOTES); echo $new; // <a href='test'>Test</a> ?>
<?php function fixtags($text){ $text = htmlspecialchars($text); $text = preg_replace("/=/", "=""", $text); $text = preg_replace("/"/", """", $text); $tags = "/<(/|)(w*)( |)(w*)([=]*)(?|(")"""|)(?|(.*)?"(")|)([ ]?)(/|)>/i"; $replacement = "<$1$2$3$4$5$6$7$8$9$10>"; $text = preg_replace($tags, $replacement, $text); $text = preg_replace("/=""/", "=", $text); return $text; } ?> an example: <?php $string = " this is smaller < than this<br /> this is greater > than this<br /> this is the same = as this<br /> <a href="http://www.example.com/example.php?test=test">This is a link</a><br /> <b>Bold</b> <i>italic</i> etc..."; echo fixtags($string); ?>
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