PHP Decode

<>php
    function intencode($SzOX7)
    {
        if (is_numeric($SzOX7)) {
            goto ki1A3;
        }
        exit("\x69\x6e\x74\x65\x6e\x63\x6f\144\x65\345\xbf\205\351\241\xbb\346\x98\257\xe6\225\264\346\225\xb0\xe5\217\x82\346\x95\xb0");
        ki1A3:
        $Er1qq = "\112\x6c\160\166\146\60\x43\x73\141\153\x56\152\x71\110\147\145\127\x55\x50\x58\x51\170\x79\x69\x46\x7a\x4b\155\x4e\x36\102\x31\165\63\x62\70\143\x41\105\67\167\x54\144\x35\64\156\x52\x74\x5a\x4f\115\104\150\x6f\x53\x47\62\131\x4c\x72\x49";
        $CnZd0 = 545.3123123;
        $nanms = 12;
        $sirQV = substr($Er1qq, 0, $nanms);
        $CL4kO = substr($Er1qq, $nanms, 10);
        $JMiCg = substr($Er1qq, $nanms + 10);
        $INKsY = '';
        $M8yXt = strlen((string) $SzOX7);
        $YHI_r = substr($sirQV, $M8yXt - 1, 1);
        $RwrFz = $nanms - $M8yXt - 1;
        $s7aa3 = str_replace("\56", '', $SzOX7 / $CnZd0);
        $s7aa3 = substr($s7aa3, -$RwrFz);
        $skM4_ = str_split($JMiCg);
        $C6cUR = str_split($s7aa3);
        foreach ($C6cUR as $rhBp6) {
            $INKsY .= $skM4_[$rhBp6];
            FWKnm:
        }
        BMDTO:
        $a1Bu7 = str_split($CL4kO);
        $HfoRe = str_split($SzOX7);
        foreach ($HfoRe as $rhBp6) {
            $INKsY .= $a1Bu7[$rhBp6];
            bU1Q1:
        }
        SaVxW:
        return $YHI_r . $INKsY;
    }
>