Fix for crayon syntax highlighter wordpress plugin and php 7.3 fatal error

kaoru July 30, 2023No Comments

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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：

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

vi ./wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php +340

修改

return preg_replace('/[^\w-+#]/msi', '', $id);

为

return preg_replace('/[^w\-+#]/msi', '', $id);

Reference

解决Crayon Syntax Highlighter安装问题
fix-for-crayon-syntax-highlighter-wordpress-plugin-and-php-7-3-fatal-error

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kaoru

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