How To Specify Input Values for Radio Buttons

Home > PHP > Form

Q

How To Specify Input Values for Radio Buttons? - PHP Script Tips - Processing Web Forms

✍: FYIcenter.com

A

Radio buttons can be used in a form for two situations:

As a single switch - One <INPUT TYPE=RADIO ...> tag, with no input value specified. When submitted with button pushed down, you will receive a value of "on". When submitted with button not pushed, this field will not be submitted.
As a group of exclusive selections - Multiple <INPUT TYPE=RADIO ...> tags with the same field name with different input values specified in the "value" attribute. When submitted, only one input value that associated with pushed button will be submitted.

The sample PHP script page below is a modified version of submit_comments.php that has one group of exclusive radio buttons named as "job" and single switch named as "rate":

<?php
  print("<html><form action=processing_forms.php method=post>");
  print("<table><tr><td colspan=2>Please enter and submit your"
    ." comments about FYICenter.com:</td></tr>");
  print("<tr><td>Your Name:</td>"
    ."<td><input type=text name=name></td></tr>\n");
  print("<tr><td>Your Job Title:</td>"
    ."<td><input type=radio name=job value=dev>Developer  "
    ."<input type=radio name=job value=sqa>QA Engineer  "
    ."<input type=radio name=job value=dba>DBA  "
    ."<input type=radio name=job value=other>Other  "
    ."</td></tr>\n");
  print("<tr><td>Like Site:</td>"
    ."<td><input type=radio name=rate></td></tr>\n");
  print("<tr><td>Comments:</td>"
    ."<td><input type=text name=comment></td></tr>\n");
  print("<tr><td colspan=2><input type=submit><td></tr></table>\n");
  print("</form></html>\n");
?>

If you submit the form with this page, you will get something like this:

Number of values: 4
  name = Sue
  job = sqa
  rate = on
  comment = Will visit FYICenter.com again.

2007-04-23, 5433👍, 0💬

💬 2016-06-26 Donald: Thanks.

How To Avoid the Undefined Index Error
How To Avoid the Undefined Index Error? - PHP Script Tips - Processing Web Forms If you don't want your PHP page to give out errors as shown in the previous exercise, you should consider checking all expected input fields in $_REQUEST with the isset() function as shown in the example script below: &... 2007-04-23, 12488👍, 0💬

How To List All Values of Submitted Fields
How To List All Values of Submitted Fields? - PHP Script Tips - Processing Web Forms If you want list all values of submitted fields, you can write a simple loop to retrieve all entries in the $_REQUEST array. Below is an improved version of processing_forms.php to list all submited input values: &a... 2007-04-23, 7217👍, 0💬

How To Supply Default Values for Text Fields
How To Supply Default Values for Text Fields? - PHP Script Tips - Processing Web Forms If you want to provide a default value to a text field in your form, you need to pay attention to following notes: The default value should be provided in the 'VALUE=default_value' attribute in the &ltINPUT TY... 2007-04-22, 5826👍, 0💬

How To Remove Slashes on Submitted Input Values
How To Remove Slashes on Submitted Input Values? - PHP Script Tips - Processing Web Forms By default, when input values are submitted to the PHP engine, it will add slashes to protect single quotes and double quotes. You should remove those slashes to get the original values by applying the stripsla... 2007-04-22, 5769👍, 0💬

What Happens If an Expected Input Field Was Not Submitted
What Happens If an Expected Input Field Was Not Submitted? - PHP Script Tips - Processing Web Forms Obviously, if an expected input field was not submitted, there will no entry in the $_REQUEST array for that field. You may get an execution error, if you are not checking the existence of the expecte... 2007-04-23, 5643👍, 0💬

How To Retrieve the Submitted Form Data
How To Retrieve the Submitted Form Data? - PHP Script Tips - Processing Web Forms The best way to retrieve the form data submitted by your visitor is to use the $_REQUEST array. The keys in this array will be the field names defined in form. The values in this array will be the values entered by you... 2007-04-23, 5627👍, 0💬

What Are the Input Values of SELECT Tags
What Are the Input Values of SELECT Tags? - PHP Script Tips - Processing Web Forms SELECT tags are used in forms to provide dropdown lists. Entris in a dropdown list are defined by OPTION tags, which can provide input values in two ways: Implicit value - Provided as <OPTION>input_value& ;lt... 2007-04-23, 5552👍, 0💬

How To Specify Input Values for Radio Buttons
How To Specify Input Values for Radio Buttons? - PHP Script Tips - Processing Web Forms Radio buttons can be used in a form for two situations: As a single switch - One <INPUT TYPE=RADIO ...> tag, with no input value specified. When submitted with button pushed down, you will receive a value ... 2007-04-23, 5434👍, 0💬

How To Specify Input Values for Checkboxes
How To Specify Input Values for Checkboxes? - PHP Script Tips - Processing Web Forms Checkboxes can be used in a form for two situations: As a single switch - One <INPUT TYPE=CHECKBOX ...> tag, with no input value specified. When submitted with button pushed down, you will receive a value of ... 2007-04-23, 5306👍, 0💬

All rights in the contents of this web site are reserved by the individual author. fyicenter.com does not guarantee the truthfulness, accuracy, or reliability of any contents.