How to identify which button is pressed and send that to server? - php

Question

In the while loop I have doctor name, specialist and payment from my database. Each doctor has an <input type="button"> named "did". I want that when I press a button to contact a specific doctor, the value of $row3['did'] will sent to my contact.php page. But I cannot understand where to put it in the <input type="button"> so that I can identify which button is pressed and send its value to contact.php.
while($row3 = mysql_fetch_array($result3))
{
?>
<div class="col_1_of_4 span_1_of_4">
<div class="title-img">
<div class="title"><img src="images/Crystal_Clear_user.gif" alt=""></div>
<!--<div class="title-desc"><p>FACILITY 1</p></div>-->
<div class="clear"></div>
</div>
<h4 class=head>Doctor name: <?php echo $row3['dName'];?></h4>
<p>Specialist: <?php echo $row3['specialist'];?></p>
<p>Payment: <?php echo $row3['payment'];?></p>
<hr>
<div id='contact-form'>
more
<!--<button id="findHelp" class="btn btn-primary"><a href="?did=<?php// echo $row3['did'];?>" >Find help</a></button>-->
<!--<a href="data/contact.php?did=<?php //echo $row3['did'];?>" ></a>-->
<!--<input type='button' name='contact' id='contact' value="Message" class='contact demo btn btn-primary'/>-->
<form method='post' action='contact.php'>
<input type='button' name='did' id='did' value="Message" class='contact demo btn btn-primary'/>
</form>
</div>
<!-- preload the images -->
<div style='display:none'>
<img src='images/loading.gif' alt='' />
</div>
</div>
<?php
}
?>

Answer 1

There is no need to add the form..simply send the id with link when button is clicked and get that id on contact .php page..
OR use as following
<script src="jquery.js" type="text/javascript"></script>
<script>
$(document).ready(function() {
$('.contact').click(function(){
var this_rel=$(this).attr('rel');
location.href="contact.php?id="+this_rel;
});
});
</script>
<input type='button' name='did' id='did' value="Message" class='contact demo btn btn-primary' rel="<?php echo $row3['did'];?>"/>

Answer 2

try if(isset($_POST['button_name']) && $_POST['button_name'] === 'button_value')

Answer 3

Use a hidden value inside the form, and assign the doctor details there
<form method="post" action="contact.php">
<input type="hidden" name="thedoctor" value="<?php echo $row3['did'];?>"/>
<input type="button" name="did" id="did" value="Message" class="contact demo btn btn-primary"/>
</form>
And then find the selected button by $button_clicked = $_POST['thedoctor']

Answer 4

This will be your PHP code
<?php
while($row3 = mysql_fetch_array($result3))
{
?>
<div class="col_1_of_4 span_1_of_4">
<div class="title-img">
<div class="title"><img src="images/Crystal_Clear_user.gif" alt=""></div>
<!--<div class="title-desc"><p>FACILITY 1</p></div>-->
<div class="clear"></div>
</div>
<h4 class=head>Doctor name: <?php echo $row3['dName'];?></h4>
<p>Specialist: <?php echo $row3['specialist'];?></p>
<p>Payment: <?php echo $row3['payment'];?></p>
<hr>
<div id='contact-form'>
more
<input type='button' name='did' id='did' value="Message" class='contact demo btn btn-primary' rel="<?php echo $row3['did'];?>"/>
</div>
<!-- preload the images -->
<div style='display:none'>
<img src='images/loading.gif' alt='' />
</div>
</div>
<?php
}
?>
and above that put some jquery code
<script src="jquery.js" type="text/javascript"></script>
<script>
$(document).ready(function() {
$('.contact').click(function(){
var this_rel=$(this).attr('rel');
location.href="contact.php?id="+this_rel;
});
});
</script>
Dont forget to write query of database, because that was not in your example, thats why i did not mention that. Also add jquery.js to its appropriate place so jquery code can run. Please do this trick and let me know..

Answer 5

Just use buttons :
HTML
<form method="POST">
<button type="submit" name="btn_action_1" value="abc">Message</button>
<button type="submit" name="btn_action_1" value="def">Message</button>
<button type="submit" name="btn_action_1" value="ghi">Message</button>
<button type="submit" name="btn_action_1" value="jkl">Message</button>
<button type="submit" name="btn_action_2" value="123">Message</button>
<button type="submit" name="btn_action_3" value="456">Message</button>
</form>
PHP
<?php
if(isset($_POST['btn_action_1'])) {
echo 'btn_action_1 was pressed with value: '. $_POST['btn_action_1'];
}
if(isset($_POST['btn_action_2'])) {
echo 'btn_action_2 was pressed with value: '. $_POST['btn_action_2'];
}