[Resolved] Function within a function?

kilbey1

Is it possible to call a fuction from within a function? I'm trying this out and am getting errors...

AstroTeg

Yup, as seen on php.net: http://www.php.net/functions

kilbey1

Hmm, well it's saying I can certainly build a function within a function. But I was trying something more like this:

<?php
function bar()
{
     echo "This is my sub-function meant to appear in my main function.";
}

function foo() 
{
     echo "This is my main function.";
     echo "Stuff will appear here.";
     bar();
}

(with a conditional that if A exists, show bar().)

AstroTeg

Oops - a little too early for me. I missed "call" and thought "define" - you can define a function from within a function. You certainly can call a function from another function.

You need an if() statement.

if($a)  // when expression == true
  callFunction();

kilbey1

Brilliant! Thanks (again) for your assistance.

kilbey1

Ooh, ooh... one more question on this.

If I'm getting 'undeclared variables' now because of this...well, is there something additional I need to be doing?

Example: I have a form, which is function cost(). Snippet:

    <tr valign="top">
      <td>&nbsp;</td>
      <td>&nbsp; </td>
    </tr>
	<? maritalCheck(); ?>
 	<tr valign="top"> 
      <td width="20%">&nbsp;</td>
      <td width="80%"> 
        <input type="submit" name="submit" value="Submit">
      </td>
    </tr>

Above this function, I have built another table section to check for the person's marital status.

	function maritalCheck() {
	?>
	<!-- CANDIDATE INFO PORTION OF FORM  -->
    <tr valign="top">
      <td colspan="2">
	  <hr>      

	  <strong>Candidate Information: </strong></td>
    </tr>
    <tr valign="top">
      <td>Filing Status: </td>
      <td>
        <select name="marital_status" id="marital_status">
          <option value="(null)" selected>SELECT...</option>
          <option value="Married">Married</option>
          <option value="Single">Single</option>
        </select></td>
    </tr>
    <tr valign="top">
      <td>Dependents:</td>
      <td>
        <input name="dependents" type="text" id="dependents" value="0" size="5" maxlength="2">
      </td>
    </tr>
    <tr valign="top">
      <td>Addl Exemptions:</td>
      <td>
        <input name="addl_exemptions" type="text" id="addl_exemptions" value="0" size="5" maxlength="2">
      </td>
    </tr>
    <tr valign="top"> 
      <td width="20%">&nbsp;</td>
      <td width="80%">&nbsp; 
      </td>
    </tr> 
  <!-- END OF CANDIDATE INFO PORTION OF FORM  -->
<?
	}

Later, in my IF statement, I have stated that if marital_status form field == '(null)' field, then show a warning and redisplay cost().

It works brilliantly, until I actually do choose a marital status; at which time I get errors like so:

Notice: Undefined variable: salary in C:\xitami\webpages\recruit\index.php on line 711

How could they be missing? It worked perfectly... do I have to redeclare something?

kilbey1

NEVER MIND! This was a problem with another function I had started and never finished. Please feel free to slap me silly.