Error undefined index in :

Kemungkinan kamu salah panggil field saat memanggil data dari database. contoh:

<pre> $exec_query = mysqli_query($koneksi, "SELECT nama, umur FROM tbl_name ORDER BY id ASC"); $data = mysqli_fetch_assoc($exec_query);

echo $data["nama_istri"]; // undefined index nama_istri, karena field yang dipanggil di query itu nama, umur. nama_istri tidak dikenal. </pre>

@bachtiarlubis

<pre> &lt;div class="modal fade" id="tombol-link" data-backdrop="static" tabindex="-1" role="dialog" aria-labelledby="tombol-linkLabel" aria-hidden="true"&gt; &lt;div class="modal-dialog modal-dialog-centered" role="document"&gt; &lt;div class="modal-content"&gt; &lt;div class="modal-header"&gt; &lt;h5 class="modal-title" id="tombol-linkLabel"&gt;Modal title&lt;/h5&gt; &lt;button type="button" class="close" data-dismiss="modal" aria-label="Close"&gt; &lt;span aria-hidden="true"&gt;&times;&lt;/span&gt; &lt;/button&gt; &lt;/div&gt; &lt;div class="modal-body"&gt; &lt;div class="form-group"&gt; &lt;label&gt;Text Link&lt;/label&gt; &lt;input type="text" class="form-control forum-box-text-link"&gt; &lt;/div&gt; &lt;div class="form-group"&gt; &lt;label&gt;URL Link&lt;/label&gt; &lt;input type="url" class="form-control forum-box-link"&gt; &lt;/div&gt; &lt;/div&gt; &lt;div class="modal-footer"&gt; &lt;button type="button" class="btn btn-secondary" data-dismiss="modal"&gt;Close&lt;/button&gt; &lt;button type="button" class="btn btn-primary forum-box-link-oke"&gt;Sisipkan Link&lt;/button&gt; &lt;/div&gt; &lt;/div&gt; &lt;/div&gt; &lt;/div&gt; </pre>