Accessing Arrays inside Arrays In PHP

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花落未央 2020-12-24 15:23

Hello I want to access inactive tags inside this array any idea?

stdClass::__set_state(
array
  \'languages\' => 
    array
      76 => 
        array
          


        
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4条回答
  • 2020-12-24 15:25

    If $a is the array that's passed, $a[76][0]['id'] should give '76' and $a[76][1]['id'] should give '81', but I can't test as I don't have PHP installed on this machine.

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  • 2020-12-24 15:27

    Regarding your code: It's slightly hard to read... If you want to try to view it all in a php array format, just print_r it. This might help:

    <?php
    $a =
    array(  
    
      'languages' =>    
    
      array (   
    
      76 =>      
    
     array (       'id' => '76',       'tag' => 'Deutsch',     ),   ),    'targets' =>    
     array (     81 =>      
     array (       'id' => '81',       'tag' => 'Deutschland',     ),   ),    'tags' =>    
     array (     7866 =>      
     array (       'id' => '7866',       'tag' => 'automobile',     ),     17800 =>      
     array (       'id' => '17800',       'tag' => 'seat leon',     ),     17801 =>      
     array (       'id' => '17801',       'tag' => 'seat leon cupra',     ),   ),   
    'inactiveTags' =>    
     array (     195 =>      
     array (       'id' => '195',       'tag' => 'auto',     ),     17804 =>      
     array (       'id' => '17804',       'tag' => 'coupès',     ),     17805 =>      
     array (       'id' => '17805',       'tag' => 'fahrdynamik',     ),     901 =>      
     array (       'id' => '901',       'tag' => 'fahrzeuge',     ),     17802 =>      
     array (       'id' => '17802',       'tag' => 'günstige neuwagen',     ),     1991 =>      
     array (       'id' => '1991',       'tag' => 'motorsport',     ),     2154 =>      
     array (       'id' => '2154',       'tag' => 'neuwagen',     ),     10660 =>      
     array (       'id' => '10660',       'tag' => 'seat',     ),     17803 =>      
     array (       'id' => '17803',       'tag' => 'sportliche ausstrahlung',     ),     74 =>      
     array (       'id' => '74',       'tag' => 'web 2.0',     ),   ),    'categories' =>    
     array (     16082 =>      
     array (       'id' => '16082',       'tag' => 'Auto & Motorrad',     ),     51 =>      
     array (       'id' => '51',       'tag' => 'Blogosphäre',     ),     66 =>      
     array (       'id' => '66',       'tag' => 'Neues & Trends',     ),     68 =>      
     array (       'id' => '68',       'tag' => 'Privat',     ),   ), );
    
     printarr($a);
     printarr($a['languages'][76]['tag']);
     parintarr($a['targets'][81]['id']); 
     function printarr($in){
     echo "\n";
     print_r($in);
     echo "\n";
     }
     //run in php command line php path/to/file.php to test, switching otu the print_r.
    
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  • 2020-12-24 15:28

    Study up on multidimensional arrays. This question might help.

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  • 2020-12-24 15:48

    You can access the inactive tags array with (assuming $myArray contains the array)

    $myArray['inactiveTags'];
    

    Your question doesn't seem to go beyond accessing the contents of the inactiveTags key so I can only speculate with what your final goal is.

    The first key:value pair in the inactiveTags array is

    array ('195' => array(
                     'id' => 195, 
                     'tag' => 'auto')
          )
    

    To access the tag value, you would use

    $myArray['inactiveTags'][195]['tag']; // auto
    

    If you want to loop through each inactiveTags element, I would suggest:

    foreach($myArray['inactiveTags'] as $value) {
      print $value['id'];
      print $value['tag'];
    }
    

    This will print all the id and tag values for each inactiveTag

    Edit:: For others to see, here is a var_dump of the array provided in the question since it has not readible

    array
      'languages' => 
        array
          76 => 
            array
              'id' => string '76' (length=2)
              'tag' => string 'Deutsch' (length=7)
      'targets' => 
        array
          81 => 
            array
              'id' => string '81' (length=2)
              'tag' => string 'Deutschland' (length=11)
      'tags' => 
        array
          7866 => 
            array
              'id' => string '7866' (length=4)
              'tag' => string 'automobile' (length=10)
          17800 => 
            array
              'id' => string '17800' (length=5)
              'tag' => string 'seat leon' (length=9)
          17801 => 
            array
              'id' => string '17801' (length=5)
              'tag' => string 'seat leon cupra' (length=15)
      'inactiveTags' => 
        array
          195 => 
            array
              'id' => string '195' (length=3)
              'tag' => string 'auto' (length=4)
          17804 => 
            array
              'id' => string '17804' (length=5)
              'tag' => string 'coupès' (length=6)
          17805 => 
            array
              'id' => string '17805' (length=5)
              'tag' => string 'fahrdynamik' (length=11)
          901 => 
            array
              'id' => string '901' (length=3)
              'tag' => string 'fahrzeuge' (length=9)
          17802 => 
            array
              'id' => string '17802' (length=5)
              'tag' => string 'günstige neuwagen' (length=17)
          1991 => 
            array
              'id' => string '1991' (length=4)
              'tag' => string 'motorsport' (length=10)
          2154 => 
            array
              'id' => string '2154' (length=4)
              'tag' => string 'neuwagen' (length=8)
          10660 => 
            array
              'id' => string '10660' (length=5)
              'tag' => string 'seat' (length=4)
          17803 => 
            array
              'id' => string '17803' (length=5)
              'tag' => string 'sportliche ausstrahlung' (length=23)
          74 => 
            array
              'id' => string '74' (length=2)
              'tag' => string 'web 2.0' (length=7)
      'categories' => 
        array
          16082 => 
            array
              'id' => string '16082' (length=5)
              'tag' => string 'Auto & Motorrad' (length=15)
          51 => 
            array
              'id' => string '51' (length=2)
              'tag' => string 'Blogosphäre' (length=11)
          66 => 
            array
              'id' => string '66' (length=2)
              'tag' => string 'Neues & Trends' (length=14)
          68 => 
            array
              'id' => string '68' (length=2)
              'tag' => string 'Privat' (length=6)
    
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