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WordPress Markdown插件Crayon Syntax Highlighter在PHP 7.3/7.4版本中出错。
Markdown的文档会显示空白，查看Apache错误日志有下面错误：
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PHP Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in /data1/svr/wordpress/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php on line 340 |
解决方法如下，编辑
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vi ./wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php +340 |
修改
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return preg_replace('/[^\w-+#]/msi', '', $id); |
为
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return preg_replace('/[^w\-+#]/msi', '', $id); |
