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Analyze the matching meaning of this code of spinrtf function

WBOY
WBOYOriginal
2016-08-18 09:15:581328browse

<code>$pattern = sprintf('/(?:,\s*|^)\%Qs\E(?=,\s*|$)/m', $this->input->ip_address());

        // Returns 1, 0 or FALSE (on error only). Therefore implicitly convert 1 to TRUE
        if (preg_match($pattern, $this->config->item('rest_ip_blacklist')))</code>

Reply content:

<code>$pattern = sprintf('/(?:,\s*|^)\%Qs\E(?=,\s*|$)/m', $this->input->ip_address());

        // Returns 1, 0 or FALSE (on error only). Therefore implicitly convert 1 to TRUE
        if (preg_match($pattern, $this->config->item('rest_ip_blacklist')))</code>

Just match the IP in the blacklist

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