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PHP IP address format detection function

The copy code is as follows:

Function checkIp ($ip) {

$ip = str_replace (",", $ip)

$ip = strtolower ($ip)

$ip= str_replace ("http://",", $ip)

$ip= str_replace ("https://",", $ip)

If (preg_match ('/ [AmurZamurzhuang -] /', $ip)) {

If (preg_match ('/ ^ ([\ w -] +\.) + ((com) | (net) | (org) | (gov\ .cn) | (info) | (cc) | (net\ .cn) | (org\ .cn) | (name) | (biz) | (tv) | (cn) | (mobi) | (name) | (sh) | (ac) | (io) | (tw) | (com\ .tw) | (hk) | (com\ .HK) | (ws) | (travel) | (tm) | (la) | (me\ .uk) | (org\ .uk) | (ltd\ .uk) | (plc\ .uk) | (in) | (eu) | (it) | (jp) | (co) | (me) | (mx) | (ca) | (ag) | (com\ .co) | (net\ .co) | (nom\ .co) | (com\ .ag) | ( Net\ .ag) | (fr) | (org\ .ag) | (am) | (asia) | (at) | (be) | (bz) | (com\ .bz) | (net\ .bz) | (net\ .br) | (com\ .br) | (de) | (es) | (com\ .es) | (nom\ .es) | (org\ .es) | (fm) | (gs) | (co\ .in) | (firm\ .in) | (gen\. In) | (ind\ .in) | (org\ .in) | (jobs) | (ms) | (com\ .mx) | (nl) | (nu) | (co\ .nz) | (net\ .nz) | (org\ .nz) | (tc) | (tk) | (org\ .tw) | (idv\ .tw) | (co\ .uk) | (vg) | (ad) | (ae) | (af) | (ai) | (al) | | (an) | (ao) | (aq) | (as) | (au) | (aw) | (az) | (ba) | (bb) | (bd) | (bf) | (bg) | (bh) | (bi) | (bm) | (bn) | (bo) | (br) | (bs) | (bt) | (bv) | (bw) | (by) | (cd) | (cf) | (cg) | (ch) | (ci) | | | (ck) | (cl) | (cm) | (cu) | (cv) | (cx) | (cy) | (cz) | (dj) | (dk) | (dm) | (do) | (dz) | (ec) | (eg) | (er) | (et) | (fi) | (fj) | (fk) | (fo) | (ga) | (gd) | (ge) | (gf) | (gg) | (gh) | (gi) | | | (gl) | (gm) | (gn) | (gq) | (gr) | (gt) | (gu) | (gw) | (gy) | (hm) | (hn) | (hr) | (ht) | (hu) | (ie) | (il) | (im) | (iq) | (ir) | (is) | (je) | (jm) | (jo) | (ke) | (kg) | (kh) | (ki) | (km) | | | (kn) | (kr) | (kw) | (kz) | (lb) | (lc) | (li) | (lk) | (lr) | (ls) | (lt) | (lu) | (lv) | (ly) | (mc) | (md) | (mg) | (mh) | (mk) | (ml) | (mm) | (mn) | (mo) | (mp) | (mq) | (mr) | (mt) | (mu) | | | (mv) | (mw) | (my) | (mz) | (na) | (nc) | (ne) | (nf) | (ng) | (ni) | (no) | (np) | (nr) | (nz) | (om) | (pa) | (pe) | (pf) | (pg) | (ph) | (pl) | (pm) | (pn) | (pr) | (ps) | (pt) | (pw) | (py) | (qa) | | | (re) | (ro) | (ru) | (sa) | (sb) | (sc) | (sd) | (se) | (sg) | (si) | (sk) | (sl) | (sm) | (sn) | (st) | (sv) | (sy) | (sz) | (td) | (tf) | (tg) | (th) | (tj) | (tl) | (tn) | (to) | (tr) | (tt) | | | (tz) | (ua) | (ug) | (uk) | (uy) | (uz) | (va) | (vc) | (ve) | (vi) | (vn) | (vu) | (wf) | (ye) | (yt) | (yu) | (za) | (zm) | (zw)) $/ i' | $ip)) {

Return true

} else {

Return false

}

} else {

$ipArray = explode (".", $ip)

$j = count ($ipArray)

If ($jacks 4)

{

Return false

}

For ($ifolio, share i255) {

Return false

}

}

Return true

}

}

JS Code:

The copy code is as follows:

Function checkIP () {

Var ipArray,ip,j

Ip = document.ipform.ip.value

If (ip.indexOf ("") > = 0) {

Ip = ip.replace (/ / g, "")

Document.ipform.ip.value = ip

}

If (ip.toLowerCase (). IndexOf ("http://")==0){

Ip = ip.slice (7)

Document.ipform.ip.value = ip

}

If (ip.toLowerCase (). IndexOf ("https://")==0){

Ip = ip.slice (8)

Document.ipform.ip.value = ip

}

If (ip.slice (ip.length-1) = = "/") {

Ip = ip.slice (0Legend ip.futhmur1)

Document.ipform.ip.value = ip

}

If (/ [AmurZaMuzhuang -] / .test (ip)) {

If (! / ^ ([\ w -] +\.) + (com) | (net) | (org) | (gov\ .cn) | (info) | (cc) | (com\ .cn) | (net\ .cn) | (org\ .cn) | (name) | (biz) | (tv) | (mobi) | (name) | (sh) | (ac) | (io) | (tw) | (com\ .tw) | (hk) | (com\. Hk) | (ws) | (travel) | (us) | (la) | (me\ .uk) | (org\ .uk) | (ltd\ .uk) | (plc\ .uk) | (in) | (eu) | (it) | (jp) | (co) | (me) | (mx) | (ca) | (ag) | (com\ .co) | (net\ .co) | (nom\ .co) | (com\ .ag) | (net\ .ag) ) | (fr) | (org\ .ag) | (am) | (asia) | (at) | (be) | (bz) | (com\ .bz) | (net\ .bz) | (net\ .br) | (com\ .br) | (de) | (es) | (com\ .es) | (nom\ .es) | (org\ .es) | (fm) | (co\ .in) | (firm\ .in) | (gen\ .in) | Ind\ .in) | (net\ .in) | (org\ .in) | (jobs) | (ms) | (com\ .mx) | (nl) | (nu) | (co\ .nz) | (net\ .nz) | (org\ .nz) | (tc) | (tk) | (org\ .tw) | (idv\ .tw) | (co\ .uk) | (vg) | (ad) | (ae) | (af) | (ai) | (al) | (an) | | (ao) | (aq) | (ar) | (au) | (aw) | (az) | (ba) | (bb) | (bd) | (bf) | (bg) | (bh) | (bi) | (bj) | (bn) | (bo) | (br) | (bs) | (bt) | (bv) | (bw) | (by) | (cd) | (cf) | (cg) | (ch) | (ci) | (ck) | | | (cl) | (cm) | (cr) | (cv) | (cx) | (cy) | (cz) | (dj) | (dk) | (dm) | (do) | (dz) | (ec) | (ee) | (er) | (et) | (fi) | (fj) | (fk) | (fo) | (ga) | (gd) | (ge) | (gf) | (gg) | (gh) | (gi) | (gl) | | | (gm) | (gn) | (gp) | (gr) | (gt) | (gu) | (gw) | (gy) | (hm) | (hn) | (hr) | (ht) | (hu) | (id) | (il) | (im) | (iq) | (ir) | (is) | (je) | (jm) | (jo) | (ke) | (kg) | (kh) | (ki) | (km) | (kn) | | | (kr) | (kw) | (ky) | (lb) | (lc) | (li) | (lk) | (lr) | (ls) | (lt) | (lu) | (lv) | (ly) | (ma) | (md) | (mg) | (mh) | (mk) | (ml) | (mm) | (mn) | (mo) | (mp) | (mq) | (mr) | (mt) | (mu) | (mv) | | | (mw) | (my) | (mz) | (na) | (nc) | (ne) | (nf) | (ng) | (ni) | (no) | (np) | (nr) | (nz) | (om) | (pa) | (pf) | (pg) | (ph) | (competitive) | (pm) | (pn) | (pr) | (ps) | (pt) | (pw) | (py) | (qa) | (re) | | | (ro) | (ru) | (rw) | (sb) | (sc) | (sd) | (se) | (sg) | (si) | (sk) | (sl) | (sm) | (sn) | (sr) | (sv) | (sy) | (sz) | (td) | (tf) | (tg) | (th) | (tj) | (tl) | (tn) | (to) | (tr) | (tt) | (tz) | | | (ua) | (ug) | (uk) | (uy) | (uz) | (va) | (vc) | (ve) | (vi) | (vn) | (vu) | (wf) | (ye) | (yt) | (yu) | (za) | (zm) | (zw) $/ i.test (ip)) {

Alert ("incorrect domain name")

Document.ipform.ip.focus ()

Return false

}

}

Else {

IpArray = ip.split (. ")

J = ipArray.length

If (jacks 4)

{

Alert ("incorrect IP")

Document.ipform.ip.focus ()

Return false

}

For (var item0, witch i255)

{

Alert ("incorrect IP")

Document.ipform.ip.focus ()

Return false

}

}

}

}

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