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PORemoving duplicate elements from bidemensional array php
 

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    <p>I have 2 arrays: 1 that holds file names that contain an ID in the name and 2 that contains some data as:</p> <pre><code>Array ( [0] =&gt; Array ( [file] =&gt; 103135_cara.jpg ) [1] =&gt; Array ( [file] =&gt; 103135_corpo.jpg ) [2] =&gt; Array ( [file] =&gt; 103136_cara.jpg ) [3] =&gt; Array ( [file] =&gt; 103136_corpo.jpg ) Array2 ( [0] =&gt; Array ( [id] =&gt; 103137 [nome] =&gt; Eduardo Vieira [sexo] =&gt; 1 [datanascimento] =&gt; 1983-11-15 [morada] =&gt; R: Gothard Kaesemodel 750 ? Torre 1 - Ap 508 [localidade] =&gt; Joinville [cp1] =&gt; [cp2] =&gt; [tlm] =&gt; 479946464 [email] =&gt; eduardo@wetzel.com.br [estadocivil] =&gt; 1 [profissao] =&gt; 7 ) [1] =&gt; Array ( [id] =&gt; 103138 [nome] =&gt; João Nuno Gonçalves [sexo] =&gt; 1 [datanascimento] =&gt; 1984-08-13 [morada] =&gt; Rua Elias Garcia Nº325 6D [localidade] =&gt; Amadora [cp1] =&gt; 2700 [cp2] =&gt; 323 [tlm] =&gt; 964359799 [email] =&gt; joaoridebmx@yahoo.com [estadocivil] =&gt; 1 [profissao] =&gt; 7 ) </code></pre> <p>I have merged the arrays into:</p> <pre><code>Array3 ( [0] =&gt; Array ( [id] =&gt; 103137 [nome] =&gt; Eduardo Vieira [sexo] =&gt; 1 [datanascimento] =&gt; 1983-11-15 [morada] =&gt; R: Gothard Kaesemodel 750 ? Torre 1 - Ap 508 [localidade] =&gt; Joinville [cp1] =&gt; [cp2] =&gt; [tlm] =&gt; 479946464 [email] =&gt; eduardo@wetzel.com.br [estadocivil] =&gt; 1 [profissao] =&gt; 7 [file1] =&gt; 103137_cara.jpg ) [1] =&gt; Array ( [id] =&gt; 103137 [nome] =&gt; Eduardo Vieira [sexo] =&gt; 1 [datanascimento] =&gt; 1983-11-15 [morada] =&gt; R: Gothard Kaesemodel 750 ? Torre 1 - Ap 508 [localidade] =&gt; Joinville [cp1] =&gt; [cp2] =&gt; [tlm] =&gt; 479946464 [email] =&gt; eduardo@wetzel.com.br [estadocivil] =&gt; 1 [profissao] =&gt; 7 [file1] =&gt; 103137_cara.jpg [file2] =&gt; 103137_corpo.jpg ) [2] =&gt; Array ( [id] =&gt; 103138 [nome] =&gt; João Nuno Gonçalves [sexo] =&gt; 1 [datanascimento] =&gt; 1984-08-13 [morada] =&gt; Rua Elias Garcia Nº325 6D [localidade] =&gt; Amadora [cp1] =&gt; 2700 [cp2] =&gt; 323 [tlm] =&gt; 964359799 [email] =&gt; joaoridebmx@yahoo.com [estadocivil] =&gt; 1 [profissao] =&gt; 7 [file1] =&gt; 103138_cara.jpg ) [3] =&gt; Array ( [id] =&gt; 103138 [nome] =&gt; João Nuno Gonçalves [sexo] =&gt; 1 [datanascimento] =&gt; 1984-08-13 [morada] =&gt; Rua Elias Garcia Nº325 6D [localidade] =&gt; Amadora [cp1] =&gt; 2700 [cp2] =&gt; 323 [tlm] =&gt; 964359799 [email] =&gt; joaoridebmx@yahoo.com [estadocivil] =&gt; 1 [profissao] =&gt; 7 [file1] =&gt; 103138_cara.jpg [file2] =&gt; 103138_corpo.jpg ) </code></pre> <p>My question is: how can I remove the the array elements that contain only the key 'file1' keeping the ones that have both keys 'file1' and 'file2'</p> <p>Here is the code I used to merge the arrays:</p> <pre><code>foreach ($ids as $val1) { foreach ($files as $key =&gt; $val2) { $cara = strpos($val2['file'], $val1['id'].'_cara'); if ($cara !== false) { $val1['file1'] = $val2['file']; $data[] = $val1; unset($files[$key]); } $corpo = strpos($val2['file'], $val1['id'].'_corpo'); if ($corpo !== false) { $val1['file2'] = $val2['file']; $data[] = $val1; unset($files[$key]); } } } </code></pre>
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    1. COHow did you merge the arrays? I'm really not seeing where the duplicate entries appeared from or how the data relates. I mean you *could* just `foreach ($array as $key => $item) { if (!isset($item['file1'], $item['file2'])) { unset($array[$key]); } }` - but I think a better solution would be stop the dupes appearing in the first place.
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    2. COFor each entry in array2 (which holds the ID that is part of the file names in array1), there can be 1 or 2 entries in array1. There will be almost always 2 files for each array1 element.
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    3. COI have tried this for the merging. I think here is my problem: ($ids is array1 and $files is array2)
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