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POundefined variable Codeigniter and invalid argument supplied foreach read database
 

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  1. POundefined variable Codeigniter and invalid argument supplied foreach read database
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    <p>I was following the <a href="http://www.papatlimo.com/2011/09/simple-crud-with-codeigniter.html" rel="nofollow">instruction</a> to get the entire record from table, and load them into html table. this is the model</p> <pre><code>private $namatabel; public function __construct() { parent::__construct(); $namatabel='ms_kategori_material'; } function read() { $sql = $this-&gt;db-&gt;get($this-&gt;namatabel); if($sql-&gt;num_rows() &gt; 0) { foreach($sql-&gt;result() as $row) { $data[] = $row; } return $data; } else { return null; } } </code></pre> <p>then use the <code>read()</code> function on controller</p> <pre><code>public function __construct() { parent::__construct(); $this-&gt;load-&gt;model('m_kategorimaterial'); } function index() { $data['c_row'] = $this-&gt;m_kategorimaterial-&gt;read(); //pass the c_row into the views $this-&gt;load-&gt;view('v/vkategorimaterial', $data); } </code></pre> <p>to display them on the views</p> <pre><code>&lt;?php $no = 1; foreach ($c_row as $row) { ?&gt; &lt;tr id="row"&gt; &lt;td id="no"&gt;&lt;?php echo $no;?&gt;&lt;/td&gt; &lt;td id="judul"&gt;&lt;?php echo $row-&gt;Kode_Kategori_Material_Jasa;?&gt;&lt;/td&gt; &lt;td id="kategori"&gt;&lt;?php echo $row-&gt;Nama_Material_Jasa;?&gt;&lt;/td&gt; &lt;/tr&gt; &lt;?php $no++; } ?&gt; </code></pre> <p>but then I got an error saying, undefined variable <code>c_row</code> and invalid argument supplied <code>foreach()</code>. I thought I have sent the <code>c_row</code> variable through the <code>c_kategorimaterial/index</code> and copy pasting <code>foreach</code> statement. what went wrong ? </p>
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    1. PO
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    1. This table or related slice is empty.
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    1. USKemal Fadillah
    1. USCignitor
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
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    2. PO
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      1. POundefined variable Codeigniter and invalid argument supplied foreach read database
      1. This table or related slice is empty.
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    1. COI think the method in your model is returning null! why don't you `print_r($data)`in your model and check?
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      1. POundefined variable Codeigniter and invalid argument supplied foreach read database
      1. USBhuvan Rikka
    2. COJust wondering, why are you putting your result into that array? if you didn't do that foreach loop in your model, and instead return $sql->result(), you'd save the time spent on looping through the results before returning it. Since you're just making another copy of the array.
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      1. POundefined variable Codeigniter and invalid argument supplied foreach read database
      1. USJonathan Chow
    3. CO@JonathanChow i have no idea about what i wrote, since i just copy-pasted the code, and understand them by each line of code
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      1. POundefined variable Codeigniter and invalid argument supplied foreach read database
      1. USCignitor
 

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