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<?php $product = array('a','b','c','d'); echo '<table border="1">'; echo "<tr><th>Product 1</th><th>Product 2</th><th>Similarity</th></tr>\n"; Foreach($product as $key => $a){ Foreach(array_slice($product, $key+1) as $b){ echo '<tr><td>'.$a.'</td><td>'.$b."</td></tr>\n"; } } echo '</table>';
Output for 5.6.20, 7.1.0 - 7.1.21, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
<table border="1"><tr><th>Product 1</th><th>Product 2</th><th>Similarity</th></tr> <tr><td>a</td><td>b</td></tr> <tr><td>a</td><td>c</td></tr> <tr><td>a</td><td>d</td></tr> <tr><td>b</td><td>c</td></tr> <tr><td>b</td><td>d</td></tr> <tr><td>c</td><td>d</td></tr> </table>
preferences:
139.82 ms | 408 KiB | 5 Q