christo Posted May 1, 2006 Share Posted May 1, 2006 Here we go again with another subject !1 )I have an image map in html and i want to pass values to a php script...exemple : [code]<area shape="poly" coords="257,335,255,344,240,352,241,365,256,384,261,379,261,363,261,348" href="reg_map.php">[/code]so this is a region called corsica and i want to send the 2 values, region and a name let's say corsica, to the reg_map.php knowing that region will be stable and the name will change corsica, texas,cafifornia etc...depends where the users click...They can click further and it will be perhaps region , montana How do i do this???will it work if i go [code]<area shape="poly" coords="257,335,255,344,240,352,241,365,256,384,261,379,261,363,261,348" href="reg_map.php"?region=Colorado> [/code]2)At the reg_map.php i want to get the region, something and do a query the DB something like :[code]$query=mysql_query("SELECT * FROM object WHERE region='".$HTTP_POST_VARS['region']."'");[/code] how does it look like?christosp.s it sounds ridiculous to ask if it will work but it's because i'm not done with the display results :)p.s working under win xp and php 4.3 Link to comment https://forums.phpfreaks.com/topic/8855-image-map-htmlphp/ Share on other sites More sharing options...
kenrbnsn Posted May 1, 2006 Share Posted May 1, 2006 You almost have it right.. Just move the ending double quote to include the parameter.[code]href="reg_map.php?region=Colorado"[/code]Ken Link to comment https://forums.phpfreaks.com/topic/8855-image-map-htmlphp/#findComment-32486 Share on other sites More sharing options...
christo Posted May 2, 2006 Author Share Posted May 2, 2006 1) sorted thanks :) the real problem remain though, that's where i have most difficulties...2)At the reg_map.php i want to get the region, something and do a query the DB something like :CODE$query=mysql_query("SELECT * FROM object WHERE region='".$HTTP_POST_VARS['region']."'");how does this look like?christosp.s it sounds ridiculous to ask if it will work but it's because i'm not done with the display results :)p.s working under win xp and php 4.3 Link to comment https://forums.phpfreaks.com/topic/8855-image-map-htmlphp/#findComment-32560 Share on other sites More sharing options...
kenrbnsn Posted May 2, 2006 Share Posted May 2, 2006 When you want to retrieve a value that is passed in via the URL you will find it in the $_GET superglobal array, so you code should look something like:[code]<?php$query="SELECT * FROM object WHERE region='" . $_GET['region'] . "'";$rs = mysql_query($query) or die('Problem with query: ' . $query . '<br>' . mysql_error());?>[/code]I always like to seperate the query string from then mysql_query() function call and add the "or die" clause. It makes debuginng much easier.Ken Link to comment https://forums.phpfreaks.com/topic/8855-image-map-htmlphp/#findComment-32584 Share on other sites More sharing options...
christo Posted May 2, 2006 Author Share Posted May 2, 2006 hmm nope it gives errors...Could you take a look at my code please ?<A quick sum : the html needs to pass region, something to php and this one will do a request at the DB to show any results> HTML :[code]<html> <head> <title>* Regions *</title> </head><body><div style="position:absolute;top:40px;left:250px;width:100%;text-align:center;"><a href="search.html">Retour </a></div><div style="position:absolute; top:30px;left:100px;"><A name="map"> <h3>Region map</h3> <div> <div align="center"><img src="regions.gif" width="400" height="395" vspace="10" border="3" usemap="#Map" > <map name="Map"> <area shape="poly" coords="5,116,37,114,46,124,69,123,69,128,77,129,76,144,71,152,67,147,61,152,55,151,53,156,47,159,39,166,27,162,3,144,3,116" href="reg_map.php?[color=#FF0000]region=texas[/color]"> <area shape="poly" coords="64,91,77,94,79,102,98,108,107,104,106,120,116,129,113,142,101,132,95,133,94,129,81,132,69,128,69,109" href="reg_map.php?[color=#FF0000]region=colorado[/color]">.......some more of those....</map> </div> </div></body></html>[/code]PHP receiving the region, something :[code]<?//to get the value from html$region = $HTTP_POST_VARS['region']; //At this point a get a Notice echo"<html> <title>* Offers / region *</title> <body> <table border=\"1\"> <tr><td>Annonce # :</td><td>Region :</td><td>town :</td></td><td>Type :</td> <td>Transaction :</td><td>Price :</td><td>agency:</td><td>Date :</td> </tr>";$host = "???";$user = "???";$pass = "???";$base = "???";//DB connection$db_conx = mysql_connect($host,$user,$pass) or print("error connection mysql");mysql_select_db($base, $db_conx) or print("error connection base");$query=mysql_query("SELECT * FROM object region='".$_GET['region']."'");//if...error else show result$check_reg = mysql_num_rows($query); // at this point i get Warningif($check_reg == 0) { echo "no offers for '$region'.<br> <a href=\"reg_map.html\">back</a><br><br>"; } else { while(($data=mysql_fetch_array($query))!==false) { echo "<tr> <td><a href=\"full_obj.php\">".$data['objid']."</a></td> <td>".$data['region']."</td> <td>".$data['city']."</td> <td>".$data['accomodation']."</td> <td>".$data['transaction']."</td> <td>".$data['price']."</td> <td>".$data['age_par']."</td> <td>".$data['date_aj']."</td> </tr>"; }} [/code]But it produces those faults[!--quoteo--][div class=\'quotetop\']QUOTE[/div][div class=\'quotemain\'][!--quotec--]Notice: Undefined index: region in c:\foreign\easyphp1-8\www\agence\test\reg_map.php on line 2Warning: mysql_num_rows(): supplied argument is not a valid MySQL result resource in c:\foreign\easyphp1-8\www\agence\test\reg_map.php on line 23 [/quote]since i'm under php 4.3 maybe i should use $HTTP_POST_VARS instead of $_GET no?i'm not sure i'm a bit comfuzed... Link to comment https://forums.phpfreaks.com/topic/8855-image-map-htmlphp/#findComment-32635 Share on other sites More sharing options...
kenrbnsn Posted May 2, 2006 Share Posted May 2, 2006 The superglobal arrays were introduced in ver 4.1Please read [a href=\"http://www.php.net/manual/en/language.variables.external.php\" target=\"_blank\"]this section[/a] in the fine manual.In your code, use the $_GET array for values gotten from the URL.[code]<?php $region = $_GET['region']; ?>[/code] Link to comment https://forums.phpfreaks.com/topic/8855-image-map-htmlphp/#findComment-32639 Share on other sites More sharing options...
christo Posted May 2, 2006 Author Share Posted May 2, 2006 True truei was dumb not to see, it wouldn't work because sinmple there is no post, submit thing on the html form...i also noticed that $_REQUEST works also ;)The problem with the DB is till there though...[!--quoteo--][div class=\'quotetop\']QUOTE[/div][div class=\'quotemain\'][!--quotec--]Warning: mysql_num_rows(): supplied argument is not a valid MySQL result resource in c:\foreign\easyphp1-8\www\agence\test\reg_map.php on line 23[/quote] which is[code]$query=mysql_query("SELECT * FROM object region='".$_GET['region']."'");//if...error else show result$check_reg = mysql_num_rows($query); // at this point i get Warningif($check_reg == 0) { echo "no offers for '$region'.<br> <a href=\"reg_map.html\">back</a><br><br>"; } else { while(($data=mysql_fetch_array($query))!==false) { echo "<tr> <td><a href=\"full_obj.php\">".$data['objid']."</a></td> <td>".$data['region']."</td> <td>".$data['city']."</td> <td>".$data['accomodation']."</td> <td>".$data['transaction']."</td> <td>".$data['price']."</td> <td>".$data['age_par']."</td> <td>".$data['date_aj']."</td> </tr>"; }}[/code] Why doesn't it understan the affectation?Do you think the while will work in this place i have it? Link to comment https://forums.phpfreaks.com/topic/8855-image-map-htmlphp/#findComment-32671 Share on other sites More sharing options...
kenrbnsn Posted May 2, 2006 Share Posted May 2, 2006 That error usually is an indication that you had a syntax problem with your query, change you query statement to these statements:[code]<?php$query="SELECT * FROM object region='".$_GET['region']."'";$rs = mysql_query($query) or die('Problem with query: ' . $query . '<br>' . mysql_error());$check_reg = mysql_num_rows($rs);?>[/code]Ken Link to comment https://forums.phpfreaks.com/topic/8855-image-map-htmlphp/#findComment-32683 Share on other sites More sharing options...
christo Posted May 2, 2006 Author Share Posted May 2, 2006 I like the precisions of mysql_error, thanks for the tip ;)This is the new (same) error but it's strainge because it's not a complicated request...so idon't see where could the error be...hmmmm[!--quoteo--][div class=\'quotetop\']QUOTE[/div][div class=\'quotemain\'][!--quotec--]Problem with query: SELECT * FROM object region='colorado'You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '='colorado'' at line 1 [/quote]christos Link to comment https://forums.phpfreaks.com/topic/8855-image-map-htmlphp/#findComment-32693 Share on other sites More sharing options...
kenrbnsn Posted May 2, 2006 Share Posted May 2, 2006 You're missing the "where " keyword:[code]<?php $query="SELECT * FROM object WHERE region='".$_GET['region']."'"; ?>[/code]Ken Link to comment https://forums.phpfreaks.com/topic/8855-image-map-htmlphp/#findComment-32695 Share on other sites More sharing options...
christo Posted May 2, 2006 Author Share Posted May 2, 2006 damnnn i'm bad lol...I must be tired, i will take a break...yeah he he heWell that's it sorted (well a big part is yours [b]kenrbnsn[/b]) Thanks christos Link to comment https://forums.phpfreaks.com/topic/8855-image-map-htmlphp/#findComment-32710 Share on other sites More sharing options...
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