Php automatically obtains the keyword code

Php tutorials automatically get keyword code

$ Mincipin = 5; // minimum Word Frequency

$ Minlen = 4; // minimum length of a keyword

Tiqukeyword ($ tiqustr, $ minlen, $ mincipin );

Function tiqukeyword ($ tiqustr, $ minlen, $ mincipin)

{$ Strlong = strlen ($ tiqustr );

$ Arr = array ();

$ K =-1;

For ($ I = 0; $ I <($ strlong-$ mincipin * $ minlen); $ I ++ ){

$ End = ceil ($ strlong-$ I)/$ mincipin + $ I );

For ($ j = $ minlen; $ j <$ end; $ j ++) {$ num = 0;

If ($ guanjianzi = substr ($ tiqustr, $ I, $ j ))! = False ){

$ Wz = $ I + $ j;

$ Num ++ ;}

Else {break ;}

While ($ wz <$ strlong) {if ($ wz = strpos ($ tiqustr, $ guanjianzi, $ wz ))! = False)

{$ Num ++;

$ Wz = $ wz + strlen ($ guanjianzi );}

Else break;

}

If ($ j = $ minlen ){

If ($ num >=$ mincipin) {$ maxnum = $ num; $ k ++; $ str = substr ($ tiqustr, $ I, $ j );

$ Arr [$ k] = array ($ I, $ j, $ str, $ num, 0 );

}

Else {break ;}
}

Else {

If ($ num> = $ maxnum ){

$ Maxnum = $ num;

$ Str = substr ($ tiqustr, $ I, $ j );

$ Arr [$ k] = array ($ I, $ j, $ str, $ num, 0 );

}

Else break;

}
}

}

Echo 'preliminarily obtained array :';

Print_r ($ arr );

// Echo '<br/> ';

 

$ Arrlong = count ($ arr );

For ($ I = 0; $ I <$ arrlong; $ I ++ ){

$ Bjarr = $ arr [$ I];

$ Nowid = $ I;

If ($ bjarr [4] = 1) continue;

For ($ j = $ I + 1; $ j <$ arrlong; $ j ++ ){

If ($ arr [$ j] [4] = 1) continue;

$ Qujianks = $ bjarr [0];

$ Qujianjs = $ bjarr [1] + $ bjarr [0]-1;

$ A = $ arr [$ j] [0];

$ B = $ arr [$ j] [1] + $ arr [$ j] [0]-1;

If ($ bjarr [2] = $ arr [$ j] [2]) & ($ bjarr [3]> $ arr [$ j] [3]) $ arr [$ j] [4] = 1;

 

If ($ a <= $ qujianks & $ qujianks <= $ B & $ a <= $ qujianjs & $ qujianjs <= $ B)

{If ($ bjarr [3] <= $ arr [$ j] [3]) {

$ Arr [$ nowid] [4] = 1; $ nowid = $ j; $ bjarr = $ arr [$ j];
}
}

Elseif ($ qujianks <= $ a & $ a <= $ qujianjs & $ qujianks <= $ B & $ B <= $ qujianjs ){

$ Arr [$ j] [4] = 1;
}

}

}

 

Echo '<br/> relay the marked array :';

Print_r ($ arr );

 

$ Jieguoarr = array ();

For ($ I = 0; $ I <$ arrlong; $ I ++)

{If ($ arr [$ I] [4] = 0) $ jieguoarr [] = $ arr [$ I];

 

}

Echo '<br/> ';

Echo 'final array :';

Print_r ($ jieguoarr );

}