Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <p>I don't understand your question very well, but perhaps you're looking for <strong><a href="http://php.net/manual/en/function.array-filter.php" rel="nofollow noreferrer"><code>array_filter()</code></a></strong>?</p> <p><code>array_filter($arr)</code> will return an array with all empty values removed, so in your case only the index 2 with the value of <code>test</code> will be preserved, you could use <code>count()</code> afterwards.</p> <hr> <p>In light of your comment:</p> <pre><code>if (count(array_filter($arr)) &gt; 0) { echo '$arr has values'; } </code></pre> <hr> <p>Beware that if you don't provide the second argument for <code>array_filter()</code> all values that can be converted to false will be dropped, such as <code>0</code>'s. If you want to remove only empty values you can do:</p> <pre><code>if (count(array_filter($arr, 'isset')) &gt; 0) { echo '$arr has values'; } </code></pre> <p>Or (my preferred version):</p> <pre><code>if (count(array_filter($arr, 'strlen')) &gt; 0) { echo '$arr has values'; } </code></pre> <hr> <p><strong>You may also be interested in a <a href="https://stackoverflow.com/questions/1013493/coalesce-function-for-php">Coalesce function for PHP</a>.</strong></p> <hr> <p>In light of your last comment I still think <code>array_filter()</code> works, (assuming <code>$_FILES</code>) try this:</p> <pre><code>if (count(array_filter($_FILES['inputbox']['name'], 'strlen')) &gt; 0) { echo count($_FILES['inputbox']['name']) . ' files'; echo '&lt;br /&gt;'; echo count(array_filter($_FILES['inputbox']['name'], 'strlen')) . ' files set'; } </code></pre>
    singulars
    1. This table or related slice is empty.
    1. POIs there a function that will recursively traverse the values of an array?
      singulars
      1. PTQuestion
    1. PTAnswer
    1. USCommunity
    1. USAlix Axel
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. POIs there a function that will recursively traverse the values of an array?
      singulars
      1. PTQuestion
    1. This table or related slice is empty.
    1. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTAcceptedByOriginator
    3. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    1. COThanks Alix. It may work as I've not used array_filter before. I'm just trying to find out if there is a value present in the array is all. There can be multiple textboxes that builds this array and if the user started at box #5 instead of number 1, I have to be able to test that.
      singulars
      1. PO
      1. USTimay
    2. CO@Timay: Updated my answer. `array_filter()` should work for you.
      singulars
      1. PO
      1. USAlix Axel
    3. COThanks a bunch Axil.. I tried this and had a look at the docs but don't get the correct results back. Even if I enter a value in say, textbox #9 the count always returns 0.
      singulars
      1. PO
      1. USTimay
 

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