Global is an integer, do not set it to an empty string
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@ -1164,7 +1164,7 @@ function bbcode($Text,$preserve_nl = false, $tryoembed = true, $simplehtml = fal
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$Text = preg_replace('/\<([^>]*?)(src|href)=(.*?)\&\;(.*?)\>/ism', '<$1$2=$3&$4>', $Text);
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// sanitizes src attributes (only relative redir URIs or http URLs)
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$Text = preg_replace('#<([^>]*?)(src)="(?!http|redir)(.*?)"(.*?)>#ism', '<$1$2=""$4 class="invalid-src" title="' . t('Invalid source protocol') . '">', $Text);
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$Text = preg_replace('#<([^>]*?)(src)="(?!http|redir|cid)(.*?)"(.*?)>#ism', '<$1$2=""$4 class="invalid-src" title="' . t('Invalid source protocol') . '">', $Text);
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// sanitize href attributes (only whitelisted protocols URLs)
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// default value for backward compatibility
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