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If you have Tidy installed as part of your PHP, you can use this filter to convert all user text into XHTML on the fly.
47 lines
1.6 KiB
PHP
47 lines
1.6 KiB
PHP
<?php
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// This function looks for text including markup and
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// applies tidy's repair function to it.
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// Tidy is a HTML clean and
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// repair utility, which is currently available for PHP 4.3.x and PHP 5 as a
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// PECL extension from http://pecl.php.net/package/tidy, in PHP 5 you need only
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// to compile using the --with-tidy option.
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// If you don't have the tidy extension installed or don't know, you can enable
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// or disable this filter, it just won't have any effect.
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// If you want to know what you can set in $tidyoptions and what their default
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// values are, see http://php.net/manual/en/function.tidy-get-config.php.
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/**
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* @author Hannes Gassert <hannes at mediagonal dot ch>
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* @param int course id
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* @param string text to be filtered
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*/
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function tidy_filter($courseid, $text) {
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/// Configuration for tidy. Feel free to tune for your needs, e.g. to allow
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/// proprietary markup.
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$tidyoptions = array(
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'output-xhtml' => true,
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'show-body-only' => true,
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'tidy-mark' => false,
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'drop-proprietary-attributes' => true,
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'drop-font-tags' => true,
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'drop-empty-paras' => true,
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'indent' => true,
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'quiet' => true,
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);
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/// Do a quick check using strpos to avoid unnecessary work
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if (strpos($text, '<') === false) {
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return $text;
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}
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/// If enabled: run tidy over the entire string
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if (function_exists('tidy_repair_string')){
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$text = tidy_repair_string($text, $tidyoptions);
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}
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return $text;
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}
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?>
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