Databases
StackOverflow2013
Postsdbo
POPDOStatement: Getting different results between `fetchAll($mode);` and `setFetchMode($mode); fetchAll();`
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POPDOStatement: Getting different results between `fetchAll($mode);` and `setFetchMode($mode); fetchAll();`
    primarykey
    data
    text
    <p>I have a question regarding PDO:</p> <p>Is there a difference between </p> <pre><code>$pdo -&gt; fetchall(PDO::FETCH_GROUP|PDO::FETCH_ASSOC); </code></pre> <p>and</p> <pre><code>$pdo -&gt; setFetchMode(PDO::FETCH_GROUP|PDO::FETCH_ASSOC); $pdo -&gt; fetchall(); </code></pre> <p>Because I get a different result for them... The documentation from PHP about these fetchmodes is not very clear to me.</p> <p>Basically, I have a table with different pages, and I want to fetch all the pages indexed by their ID...</p> <p>colums of the table: id, page_name, lang_id, ...</p> <p>The first method returns this: </p> <pre><code>array { [id of page 1] =&gt; array { [0] =&gt; array { page 1 } } [id of page 2] =&gt; array { [0] =&gt; array { page 2 } } } </code></pre> <p>When I do the second method, I only get</p> <pre><code>array { [0] =&gt; { page 1 } [1] =&gt; { page 2 } [3] =&gt; { page 3 } ... } </code></pre> <p>This is clearly not what I wanted since I want it like this:</p> <pre><code>array { [id of page 1] =&gt; { page 1 } [id of page 2] =&gt; { page 2 } [id of page 3] =&gt; { page 3 } } </code></pre> <p>The first one is good enough for me because I can easily tweak it with the array map function: </p> <pre><code>array_map('reset', $arr); </code></pre> <p>EDIT My exact code:</p> <p>This is what they have in common:</p> <pre><code> $sql = "SELECT * FROM pages"; $q = $this -&gt; db -&gt; query($sql); </code></pre> <p>Method 1:</p> <pre><code> $result1 = $q -&gt; fetchall(PDO::FETCH_GROUP|PDO::FETCH_ASSOC); </code></pre> <p>Method 2:</p> <pre><code>$q -&gt; setFetchMode(PDO::FETCH_GROUP|PDO::FETCH_ASSOC); $result2 = $q -&gt; fetchall(); </code></pre> <p>Now when I do a var_dump on both the results I get a different output...</p>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. USArth
    1. USuser3108837
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. VO
      singulars
      1. POPDOStatement: Getting different results between `fetchAll($mode);` and `setFetchMode($mode); fetchAll();`
      1. This table or related slice is empty.
      1. VTUpMod
    1. CO"I get a different result for them" --- are we supposed to come to your place and check the actual results or you will be kind and just provide it here?
      singulars
      1. POPDOStatement: Getting different results between `fetchAll($mode);` and `setFetchMode($mode); fetchAll();`
      1. USzerkms
    2. COOh, well i didn't think it was relevant because I was just asking if there is a difference between the two, and if so, what... But maybe it's better if I add it
      singulars
      1. POPDOStatement: Getting different results between `fetchAll($mode);` and `setFetchMode($mode); fetchAll();`
      1. USuser3108837
    3. COthere should be any difference
      singulars
      1. POPDOStatement: Getting different results between `fetchAll($mode);` and `setFetchMode($mode); fetchAll();`
      1. USzerkms
 

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