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December 13, 2015 23:48
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| <?php | |
| function replace_class($input, $except_classes=false) { | |
| if (!$except_classes) { | |
| return preg_replace('/ class=".*?"/', '', $input); | |
| } | |
| preg_match("/(class=\")(.*?)(\")/um", $input, $matches); | |
| $classes = explode(' ', $matches[2]); | |
| $filtered_classes = false; | |
| foreach ($classes as $class) { | |
| if (in_array($class, $except_classes)) | |
| $filtered_classes = ' '.$class; | |
| } | |
| if ($filtered_classes) { | |
| if (strlen($filtered_classes) > 1) | |
| $filtered_classes = substr($filtered_classes, 1); | |
| return preg_replace('/ class=".*?"/', ' class="'.$filtered_classes.'"', $input); | |
| } | |
| else { | |
| return preg_replace('/ class=".*?"/', '', $input); | |
| } | |
| } | |
| $input = '<a class="xxx yyy zzz" href="">'; | |
| echo replace_class($input, array('yyy')); | |
| //output: <a class="yyy" href=""> | |
| ?> |
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