Databases
StackOverflow2013
Postsdbo
POStrange MySQL/PHP issue: mysql query does not execute and there is no error
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POStrange MySQL/PHP issue: mysql query does not execute and there is no error
    primarykey
    data
    text
    <p>I ran into a strange bug in my PHP web app that I'm unable to sort out. The php script fetches a row from the database, it processes it and serializes a new query and writes back the row to the database.</p> <p>I copied the code that does this:</p> <pre><code>foreach($a as $key =&gt; $value) { $a[$key]="'".mysql_real_escape_string($value)."'"; } $a['lastUpdate']="$when"; //assembling request $assignments=array(); foreach($a as $key =&gt; $value) { $assignments[]="$key=$value"; } $q="UPDATE wtfb2_villages SET ".implode(',',$assignments)." WHERE (id=${a['id']})"; logText($q); logText(mysql_error()); $r=mysql_query($q) or die(__FILE__.':'.__LINE__.':'.mysql_error().':'.$q); logText(mysql_affected_rows()); logText('Mysql error in query is: '.mysql_error()."\n"); </code></pre> <p>That UPDATE seemingly executes. mysql_error() gives an empty string. mysql_affected_rows says 1 just like when everything is done. But if I look into the table using phpmyadmin I saw that nothing is changed.</p> <p>I logged the query itself its:</p> <pre><code>UPDATE wtfb2_villages SET id='22',ownerId='56',villageName='Új falu',x='0',y='1',buildPoints='7.2226273148149',barracksLevel='0',archeryRangeLevel='0',stablesLevel='0',workshopLevel='0',townHallLevel='0',blacksmithLevel='0',goldmineLevel='1',wallLevel='0',spearmen='0',archers='0',knights='0',catapults='0',diplomats='0',spearmanLevel='0',archerLevel='0',knightLevel='0',catapultLevel='0',spearmenTraining='0',archersTraining='0',knightsTraining='0',catapultsTraining='0',diplomatsTraining='0',lastUpdate='2011-01-18 21:56:10' WHERE (id='22') </code></pre> <p>If I just copy-paste this query directly into the phpmyadmin it executes it and I see the result in the table.</p> <p>The table is using myIsam engine. So no transactions or anythin such.</p> <p>I got stuck at this problem more than 2 hours and I'm unable to find out what's going on.</p> <p>This is the only one query that does this. queries before and after this one executing properly.</p> <p>Any ideas?</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USCalmarius
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. COHave you tried only to only UPDATE a single column instead of all of them at once?
      singulars
      1. POStrange MySQL/PHP issue: mysql query does not execute and there is no error
      1. USscragz
    2. COAre you 1000% sure you are looking at the same table on the same server? It's happened to all of us....
      singulars
      1. POStrange MySQL/PHP issue: mysql query does not execute and there is no error
      1. USPekka 웃
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload