hola gente....quisiera saber si alguna sabe donde puedo ver o conseguir un buscador en php...simplemente un motor de busqueda que se ejecute cada vez que ingreso una palabra en una celda y presiono un boton.
graciasssss
04/02/2004, 10:38
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 Buscador en php hola gente....quisiera saber si alguna sabe donde puedo ver o conseguir un buscador en php...simplemente un motor de busqueda que se ejecute cada vez que ingreso una palabra en una celda y presiono un boton. graciasssss |
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04/02/2004, 11:02
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| Yo te puedo decir teoricamente lo que tienes que hacer(es que no tengo aqui ninguno hecho): Tienes que hacer el select a la base de datos, luego coger el numero de filas que te dio como reslutado y despues ir mostrandolo con un bucle FOR Mas o menos eso es lo que tendrias que hacer, si tienes un manual de PHP puede que lo saques, sino pasate por desarrolloweb.com que me parece que explican como hacer lo que quieres.  |
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04/02/2004, 12:36
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| Prueba este: <HTML> <TITLE>JavaScript Search Engine Script With Descriptions</TITLE> <!--This code is originally from Infohiway.com, however, it has been modified--> <BODY bgcolor=white> <FORM NAME="database"> <INPUT TYPE="hidden" NAME="list" VALUE='your_first_page.htm~Your First Page Title|keywords For first file go here separated by spaces^First page description here!*http://you.can.use.full.urls.com/you..._page.htm~Your Second Page Title|keywords for second file go here separated by spaces^Second page description here!*your_third_page.htm~Your Third Page Title|keywords for third file go here separated by spaces^Third page description here!*your_fourth_page.htm~Your Fourth Page Title|keywords for fourth file go here separated by spaces^Fourth page description here!*'> </FORM> <SCRIPT language="JavaScript"> <!-- function Page(url,title,keywords,description) { While ((url.length > 0) && (url.charAt(0) == " ")) { url = url.substring(1,url.length); } this.url = url; While ((title.length > 0) && (title.charAt(0) == " ")) { title = title.substring(1,title.length); } this.title = title; this.keywords = keywords; this.description = description; return this; } function Database() { var pos = 0; While ((pos1 = amorphous.indexOf("~",pos)) != -1) { pos2 = amorphous.indexOf("|",pos1+1); pos3 = amorphous.indexOf("^",pos2+1); pos4 = amorphous.indexOf("*",pos3+1); if ((pos2 != -1) && (pos2 < pos3) && (pos3 < pos4) && (pos4 <= amorphous.indexOf("*",pos))) { this[database_length++] = new Page(amorphous.substring(pos,pos1), amorphous.substring(pos1+1,pos2), amorphous.substring(pos2+1,pos3), amorphous.substring(pos3+1,pos4)); pos = pos4+1; } Else { // Error reading amorphous database if (pos+30 <= amorphous.length) alert('Error reading in amorphous database around "' + amorphous.substring(pos,pos+30) + '"'); pos = amorphous.indexOf("*",pos) + 1; } } return this; } function search(str) { menu_length = 0; temp = new Object(); temp_length = 0; words_length = 0; words = new Object(); pos = 0; While ((pos = str.indexOf(" ")) != -1 && and_search != "exact") { words[words_length] = str.substring(0,pos); if (words[words_length].length > 0) words_length++; if (str.length == 1) str=""; else str = str.substring(pos+1,str.length); } if (str.length > 0) words[words_length++] = str; For (q=0;q<words_length;q++) { temp_length = 0; str = words[q].toLowerCase(); len = (and_search=="and"&&q>0?menu_length:database_lengt h); For (n=0; n<len; n++) { if (and_search=="and"&&q>0) { combo = (menu[n].title + " " + menu[n].description + " " + menu[n].keywords).toLowerCase(); } Else { combo = (database[n].title + " " + database[n].description + " " + database[n].keywords).toLowerCase(); } if (combo.indexOf(str) != -1) // found temp[temp_length++] = (and_search=="and"&&q>0?menu[n]:database[n]); } if (and_search!="and" && q>0) { added = 0; For (i=0;i<temp_length;i++) { duplicate = false; For (j=0;j<MENU_length&&!duplicate;j++) { if (menu[j] == temp[i]) { duplicate = true; } } if (!duplicate) menu[menu_length+(added++)] = temp[i]; } menu_length += added; } Else { for(h=0;h<temp_length;h++) menu[h] = temp[h]; menu_length = temp_length; } } } function entry() { if ((document.entryform.keyword.value.length == 0) || (document.entryform.keyword.value == " ")) { alert("First you must enter a keyword To search for."); return false; } and_search = (document.entryform.and_or.selectedIndex == 0?"and":"or"); if (document.entryform.and_or.selectedIndex == 2) and_search = "exact"; location.href = location.pathname + "?" + escape(document.entryform.keyword.value) + (and_search != "or"?"&"+and_search:""); return false; } function redWord(str) { for(r=0; r<words_length; r++) { pos = -3; word = words[r].toLowerCase(); While ((pos = str.toLowerCase().indexOf(word,pos+3)) != -1) { val = pos+word.length; str = str.substring(0,pos) + "*" + str.substring(pos,val) + "|" + str.substring(val,str.length); } } pos = -16; While ((pos = str.toLowerCase().indexOf("*",pos+16)) != -1) str = str.substring(0,pos) + "<FONT color=red>" + str.substring(pos+1,str.length); pos = -7; While ((pos = str.toLowerCase().indexOf("|",pos+7)) != -1) str = str.substring(0,pos) + "</FONT>" + str.substring(pos+1,str.length); return str; } var amorphous = document.database.list.value; temp_str = amorphous.substring(amorphous.length-2,amorphous.length); if (temp_str.indexOf("*") == -1) amorphous += "* "; else amorphous += " "; // amorphous database must have characters after last asterisk database_length = 0; // Netscape 2 fix var database = new Database(); // read In from amorphous database menu_length = 0; // Netscape 2 fix var menu = new Object(); String = ""; and_search = "or"; if (location.search.length > 1) { String = unescape(location.search.substring(1,location.sear ch.length)); pos = 0; While ((pos = string.indexOf('"',pos)) != -1) { String = string.substring(0,pos) + '\\"' + string.substring(pos+1,string.length); pos += 2; } if (string.substring(string.length-4,string.length) == "&and") { String = string.substring(0,string.length-4); and_search = "and"; } Else if (string.substring(string.length-6,string.length) == "&exact") { String = string.substring(0,string.length-6); and_search = "exact"; } Else if (string.substring(string.length-3,string.length) == "&or") { String = string.substring(0,string.length-3); and_search = "or"; } search(string); } document.write('<FORM name="entryform" onSubmit="return entry()">' +'<B>Search for:</B><BR><INPUT type="text" size=20 ' +'name="keyword" value="'+string+'"> ' +'<INPUT type="button" value="Search" onClick="entry()"><BR><Select name="and_or" ' +'size=1><OPTION'+(and_search=="and"?" selected":"")+'>find all words ' +'(AND)<OPTION'+(and_search=="or"?" selected":"")+'>find any word ' +'(OR)<OPTION'+(and_search=="exact"?" selected":"")+'>exact ' +'match</Select></FORM><BR>'); if (location.search.length > 1) document.write('<B>Results:</B><BR><BR>\n'); // eliminate the keywords portion of the statement below To eliminate them from your display For (n=0; n<MENU_length; n++) document.write('<B><A href="'+menu[n].url+'">'+menu[n].title +'</A></B><BR>'+redWord(menu[n].description)+'<BR>Keywords: ' +redWord(menu[n].keywords)+'<BR><BR>\n'); if ((menu_length == 0) && (location.search.length > 1)) document.write('Keyword "'+string+'" Not found!\n'); // --> </SCRIPT> <HR noshade> <BR><BR> The following is just a demonstration of how you would link To search.htm from other pages:<BR><BR> <!-- if you want To link from another page, just copy the JavaScript code below and paste it into your other page --> <SCRIPT language="JavaScript"> <!-- // enter full or relative URL To your search page var search_htm_url = "your_search_page_name.htm"; function searchPage() { if ((document.searchpage.keyword.value.length == 0) || (document.searchpage.keyword.value == " ")) { alert("First you must enter a keyword To search for."); } Else { sel = document.searchpage.and_or.selectedIndex; location.href = search_htm_url + "?" + escape(document.searchpage.keyword.value) + (sel==0?"&and":(sel==2?"&exact":"&or")); } return false; } document.write('<FORM name="searchpage" onSubmit="return searchPage()">' +'Search for: <INPUT type="text" size=15 name="keyword"> ' +'<INPUT type="button" value="Search" onClick="searchPage()"><BR>' +'<Select name="and_or" size=1><OPTION>find all words (AND)<OPTION>find any word ' +'(OR)<OPTION>exact match</Select><BR>"*" wildcards are valid</FORM>'); // --> </SCRIPT> <BR><BR> Or you can just use direct links. For instance, if you wanted To search for the keyword "javascript", Then you would link to <A href="search.htm?javascript">search.htm?javascript </A>. Or search for "javascript" or "perl": <A href="search.htm?javascript%20perl&or">search.htm? javascript%20perl&or</A>. Or for "javascript" and "perl": <A href="search.htm?javascript%20perl&and">search.htm ?javascript%20perl&and</A>. Or for the exact phrase "javascript perl": <A href="search.htm?javascript%20perl&exact">search.h tm?javascript%20perl&exact</A>. (note that %20 is the URL escaped form of a space). </BODY> </HTML>
__________________ El que teme preguntar, se averguenza de aprender. |
