Variable accumulates data in a foreach - PHP

Question

Variable accumulates data in a foreach - PHP

Navigation

#1 by (2 votes)

0

I have a foreach that runs through an array to show me some links of the images. When I create more than one block, the images of this one and those of the first block are shown in the 2nd.

if ( isset( $block['images'] ) ){

  foreach(array_column($block['images'], 'image') as $idImagen) {
    $url[] = brc_make_link_relative_if_local( wp_get_attachment_url( $idImagen ) );
  }

  $data_array[$section_key][$section_data_key][$block_key]['images'] = $url;
}

And as you can see, the links are repeated. I guess it should not be something difficult, but rather some method of cleaning the variable that I'm returning or something like that.

As you can see in images of the second block they are repeating

php

asked by Santiago D'Antuoni 12.12.2016 в 17:59

source

1 answer

error log in bash How to validate an input in angular so that it does not show error in the others if they are shown with an ng-repeat?

score 2 · Accepted Answer

The problem is that $url is storing all the elements that are processed in the foreach ... however once you have dumped the elements you do not reset the array, so in successive passes you will have more and more elements.

You should restart the variable before every foreach :

if ( isset( $block['images'] ) ){

  unset($url);
  $url= array();

  foreach(array_column($block['images'], 'image') as $idImagen) {
    $url[] = brc_make_link_relative_if_local( wp_get_attachment_url( $idImagen ) );
  }

  $data_array[$section_key][$section_data_key][$block_key]['images'] = $url;
}