php results from form - stuck

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php results from form - stuck

 
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  #1
Aug 7th, 2007
So, this is a "next step" for me learning how to pass multiple variables from a form to a database and publish the results. I feel that I'm *holds fingers in air* this close, but the actual solution is alluding me.

Goal: To have user select from dropdown list of 4 variables and have the query show results of that query. If there is nothing selected, show all.

Knowledge: Quite used to working and modifying other peoples scripts. First time connecting raw script to a database. I've moderate knowledge of passing variables with GET and POST from form to another page. And have knowledge of some PHP scripting and syntax.

Form Script:
PHP Syntax (Toggle Plain Text) 
  1. <form action="houseplan_results.php" method="get" name="house plans" id="house plans">
  2. <div class="houseplans">
  3.   Type of House Plan: 
  4.   <select name="houseplans">
  5.     <option selected="selected" value="All Types">All Types</option>
  6.     <option value="Beach/Coastal">Beach/Coastal</option>
  7.     <option value="Bungalow">Bungalow</option>
  8.     <option value="Contemporary">Contemporary</option>
  9.     <option value="Country">Country</option>
  10.     <option value="Craftsman">Craftsman</option>
  11.     <option value="European">European</option>
  12.     <option value="French">French</option>
  13.     <option value="Modern">Modern</option>
  14.     <option value="Northwest">Northwest</option>
  15.     <option value="Ranch">Ranch</option>
  16.     <option value="Victorian">Victorian</option>
  17.     <option value="Commercial">Commercial</option>
  18.   </select>
  19. </div>
  20. <div class="listbox">
  21. Number of Bedrooms: 
  22. <select name="bedrooms">
  23. 				<option selected="selected" value="">Any</option>
  24. 				<option value="1">1</option>
  25.  
  26. 				<option value="2">2</option>
  27. 				<option value="3">3</option>
  28. 				<option value="4">4</option>
  29. 				<option value="5">5</option>
  30. 				<option value="6">6</option>
  31. 				<option value="7">7</option>
  32. 				<option value="13">13</option>
  33. 	</select>
  34. </div>	
  35.  
  36. <div class="listbox">
  37. Number of Bathrooms:
  38. <select name="bathrooms">
  39. 				<option selected="selected" value="">Any</option>
  40. 				<option value="0">0</option>
  41. 				<option value="1">1</option>
  42.  
  43. 				<option value="1.5">1.5</option>
  44. 				<option value="2">2</option>
  45. 				<option value="2.5">2.5</option>
  46. 				<option value="3">3</option>
  47. 				<option value="3.5">3.5</option>
  48. 				<option value="4">4</option>
  49.  
  50. 				<option value="4.5">4.5</option>
  51. 				<option value="4.5 +.5">4.5 +.5</option>
  52. 				<option value="5.5">5.5</option>
  53. 				<option value="7">7</option>
  54. 				<option value="7.5">7.5</option>
  55. 				<option value="12.5">12.5</option>
  56.  
  57.  
  58. 	</select>
  59. </div>
  60.  
  61. <div class="listbox">
  62.   Number of Garages: 
  63.   <select name="garages">
  64.     <option selected="selected" value="">Any</option>	
  65.     <option value="0">0</option>
  66.     <option value="1">1</option>
  67.     <option value="2">2</option>
  68.     <option value="3">3</option>
  69.     <option value="4">4</option>
  70.     <option value="5">5</option>
  71.     <option value="6">6</option>
  72.     <option value="7">7</option>
  73.   </select>
  74. </div>					
  75. <input name="Search" type="submit" />
  76. </form>

and Result Page/Query Page. (note I do have mysql connection page setup and that is working)
PHP Syntax (Toggle Plain Text) 
  1. <?php require_once('Connections/plansdb.php'); ?>
  2.  
  3.  
  4. <?php
  5. //variables from submit form
  6. $houseplans = $plantypes ;
  7. $bedrooms  = $bed ;
  8. $bathrooms = $bath ;
  9. $garages  = $garage ;
  10.  
  11. // Query DB
  12. $query = sprintf("SELECT PLANNO, PLANTYPES, DESC, BED, BATH, GARAGE, FLOORS, URL, IMG FROM plans WHERE PLANTYPES='%s' AND BED='%s' AND BATH='%s' AND GARAGE='%s'",
  13.    mysql_real_escape_string($plantypes),
  14.    mysql_real_escape_string($bed),
  15.    mysql_real_escape_string($bath),
  16.    mysql_real_escape_string($garage));
  17.  
  18. // Perform Query
  19. $result = mysql_query($query);
  20.  
  21. // Check result
  22. // This shows the actual query sent to MySQL, and the error. Useful for debugging.
  23. if (!$result) {
  24.    $message  = 'Invalid query: ' . mysql_error() . "\n";
  25.    $message .= 'Whole query: ' . $query;
  26.    die($message);
  27. }
  28.  
  29. // Use result
  30. while ($row = mysql_fetch_assoc($result)) {
  31.    echo $row['PLANNO'];
  32.    echo $row['PLANTYPES'];
  33.    echo $row['DESC'];
  34.    echo $row['BED'];
  35.    echo $row['BATH'];
  36.    echo $row['GARAGE'];
  37.    echo $row['FLOORS'];
  38.    echo $row['URL'];
  39.    echo $row['IMG'];
  40. }
  41.  
  42. mysql_free_result($result);
  43. ?>
resource PHP.net mysql_query()


So - after a good attempt, I'm stuck. I'm thinking I've got my variables all mixed up - but need a tip/direction/solution on how to fix this.

Thanks
Jade
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Re: php results from form - stuck

 
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  #2
Aug 7th, 2007
I would recommend changing your form method to 'post' instead of 'get' and then you just need to pull the variables in from the $_POST[] array and you should be good to go. I think you want to do this
PHP Syntax (Toggle Plain Text) 
  1. //variables from submit form
  2. $houseplans = $_POST['houseplans'];
  3. $bedrooms  = $_POST['bedrooms'];
  4. $bathrooms = $$_POST['bathrooms'];
  5. $garages  = $_POST['garages'];
and change your sql parameters to use those variables.

If you want to stick with GET for your form method, just change the $_POST refs to $_GET.
Last edited by Ezzaral; Aug 7th, 2007 at 11:46 am.
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Re: php results from form - stuck

 
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  #3
Aug 7th, 2007
I'm getting this error.

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Invalid query: 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 'DESC, BED, BATH, GARAGE, FLOORS, URL, IMG FROM plans WHERE PLANTYPES='All Types'' at line 1 Whole query: SELECT PLANNO, PLANTYPES, DESC, BED, BATH, GARAGE, FLOORS, URL, IMG FROM plans WHERE PLANTYPES='All Types' AND BED='' AND BATH='' AND GARAGE=''
I also added a check to make sure I was connected to the DB. Like I said, I've been staring at this for so long - I'm probably blind to the obvious. Once I'm shown how to do it, then I'll be golden.

New Code for the Results page
PHP Syntax (Toggle Plain Text) 
  1. <?php require_once('Connections/plansdb.php');
  2. $db_selected = mysql_select_db( $database_plansdb, $plansdb);
  3. if (!$db_selected) {
  4.    die ('Can\'t use' . $database_plansdb .' : ' . mysql_error());
  5. } ?>
  6.  
  7.  
  8. <?php
  9. //variables from submit form
  10. $plantypes = $_POST['houseplans'];
  11. $bed  = $_POST['bedrooms'];
  12. $bath = $_POST['bathrooms'];
  13. $garage  = $_POST['garages'];
  14.  
  15. // Query DB
  16. $query = sprintf("SELECT PLANNO, PLANTYPES, DESC, BED, BATH, GARAGE, FLOORS, URL, IMG FROM plans WHERE PLANTYPES='%s' AND BED='%s' AND BATH='%s' AND GARAGE='%s'",
  17.    mysql_real_escape_string($plantypes),
  18.    mysql_real_escape_string($bed),
  19.    mysql_real_escape_string($bath),
  20.    mysql_real_escape_string($garage));
  21.  
  22. // Perform Query
  23. $result = mysql_query($query);
  24.  
  25. // Check result
  26. // This shows the actual query sent to MySQL, and the error. Useful for debugging.
  27. if (!$result) {
  28.    $message  = 'Invalid query: ' . mysql_error() . "\n";
  29.    $message .= 'Whole query: ' . $query;
  30.    die($message);
  31. }
  32.  
  33. // Use result
  34. while ($row = mysql_fetch_assoc($result)) {
  35.    echo $row['PLANNO'];
  36.    echo $row['PLANTYPES'];
  37.    echo $row['DESC'];
  38.    echo $row['BED'];
  39.    echo $row['BATH'];
  40.    echo $row['GARAGE'];
  41.    echo $row['FLOORS'];
  42.    echo $row['URL'];
  43.    echo $row['IMG'];
  44. }
  45.  
  46. mysql_free_result($result);
  47. ?>
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Re: php results from form - stuck

 
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  #4
Aug 7th, 2007
Ah, the syntax error is because DESC is a reserved word, you'll have to escape that with `desc` I think. You will also need to handle the "any" cases as well, perhaps by changing the use of = to LIKE (i.e. BED LIKE '%') and use the % wildcard for the "any value" cases.
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Re: php results from form - stuck

 
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  #5
Aug 7th, 2007
Changed the Database field name from "DESC" to "DESCRIPT"

Changed the = to LIKE

No errors, and nothing shows up, even on source.

So - I'm going to build a little output script for the variables that are being passed. And see if there's a drop there.

Not sure how to handle the "any" case beyond the change from = to LIKE. I tried changing the '%s' to just '%' and got an error like this.
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Invalid query: 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 'ND BATH LIKE '0' AND GARAGE LIKE '0.00000e-1' at line 1 Whole query: SELECT PLANNO, PLANTYPES, DESCRIPT, BED, BATH, GARAGE, FLOORS, URL, IMG FROM plans WHERE PLANTYPES LIKE 'ND BED LIKE 'ND BATH LIKE '0' AND GARAGE LIKE '0.00000e-1
Usually new things go "click" and "solved" in a small amount of time. This is causing my head to implode.

It's not like I'm new to scripting either, I wrote the fist skinning system for Gallery.sf.net (G1). This wee little thing is about to get a sledge hammer to the computer.

Jade
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Re: php results from form - stuck

 
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  #6
Aug 7th, 2007
variables are being passed, the "any" part is setup as an empty set. But the error occurs whether I have a selected value or not.
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Re: php results from form - stuck

 
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  #7
Aug 7th, 2007
You might change the default 'any' value for houseplans on the form to ""
PHP Syntax (Toggle Plain Text) 
  1. <option selected="selected" value="">All Types</option>
so that they are all consistent and try this
PHP Syntax (Toggle Plain Text) 
  1. $plantypes = ($_POST['houseplans']) ? $_POST['houseplans']):'%';
  2. $bed  = ($_POST['bedrooms']) ? $_POST['bedrooms'] : '%';
  3. $bath = ($_POST['bathrooms']) ? $_POST['bathrooms'] : '%';
  4. $garage  = ($_POST['garages']) ? $_POST['garages'] : '%';
. This will set the variable to its selected value if it's not null or '%' for the null case. Then change the query to
PHP Syntax (Toggle Plain Text) 
  1. $query = sprintf("SELECT PLANNO, PLANTYPES, DESC, BED, BATH, GARAGE, FLOORS, URL, IMG FROM plans WHERE PLANTYPES like '%s' AND BED like '%s' AND BATH like '%s' AND GARAGE like '%s'",
  2.    mysql_real_escape_string($plantypes),
  3.    mysql_real_escape_string($bed),
  4.    mysql_real_escape_string($bath),
  5.    mysql_real_escape_string($garage));
The sprintf() function still needs the '%s' for the variable substitution. From the docs, it sounds like the LIKE '%' wildcard should work with numerics, but I have not verified that myself. It it does not, you will have to build the WHERE string dynamically by concatenating those pieces that have a value other than "" (which was "any").
Last edited by Ezzaral; Aug 7th, 2007 at 2:31 pm.
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Re: php results from form - stuck

 
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  #8
Aug 7th, 2007
You've been really great, unfortunately it's still not outputting. Played with a few things from php.net phpbuilder and off adobe db primer.

I think I'll need to hit the book store tonight and do a little more research. honestly I thought this would be an easy script to do. The client has been waiting for it to go live for a week. I'll pop open my php book - but it's a couple years old and hesitate to use something depreciated.
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Re: php results from form - stuck

 
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  #9
Aug 7th, 2007
woot! I have output!

I was missing a ' after my last edit. But it works! thanks so much for your help. Now for the easy part - formatting the output.

yay!

Jade
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