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POWhile inside While from different MySQL table
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  1. POWhile inside While from different MySQL table
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    copied!<p>i have 2 tables:</p> <ol> <li><strong>Cat</strong></li> </ol> <p>id,cat_name</p> <ol start="2"> <li><strong>SubCat</strong></li> </ol> <p>id, subcat_name, under_cat</p> <p>i want to make a list that loads the sub category into the correct Category the problem is with the second loop, i cant make it work what am i doing wrong?</p> <pre><code> &lt;? $query = "SELECT * FROM `Cat`"; $result = $mysqli-&gt;query($query); while ($row = $result-&gt;fetch_assoc()){ echo '&lt;li&gt;&lt;a href="#"&gt;' . $row['cat_name'] . '&lt;/a&gt;&lt;ul&gt;'; $query2 = "SELECT * FROM `SubCat` WHERE under_cat = '". $row['cat_id'] ."'"; $result2 = $mysqli-&gt;query($query2); while ($row2 = $result-&gt;fetch_assoc()){ echo '&lt;li&gt;&lt;a href="#"&gt;' . $row2['subcat_name'] . '&lt;/a&gt;&lt;/li&gt;'; } echo '&lt;/ul&gt;&lt;/li&gt;'; } ?&gt; </code></pre> <p><strong>EDIT:</strong></p> <p><img src="https://i.stack.imgur.com/8EEPC.jpg" alt="enter image description here"> two lists from same category</p> <p>this is the code:</p> <pre><code> &lt;? $query = "SELECT * FROM Cat LEFT OUTER JOIN SubCat ON SubCat.under_cat = Cat.cat_id;"; $result = $mysqli-&gt;query($query); while ($row = $result-&gt;fetch_assoc()){ echo '&lt;li&gt;&lt;a href="#"&gt;' . $row['cat_name'] . '&lt;/a&gt;&lt;ul&gt;'; if($row['cat_id'] === $row['under_cat']){ echo '&lt;li&gt;&lt;a href="#"&gt;'.$row['subcat_name'].'&lt;/a&gt;&lt;/li&gt;'; </code></pre> <p>}</p> <pre><code> echo '&lt;/ul&gt;&lt;/li&gt;'; } ?&gt; </code></pre>
 

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