Internal class functions don't seem to get executed.


Posted on 16th Feb 2014 07:03 pm by admin

Hi. Can someone please put me out of my misery on this. I don't write much PHP and this has me baffled. I've probably work myself into the wrong mindset with the time I've spent on this. What's happening is that I've written a class containing some functions that work fine until I try to call other functions from within them. These functions don't seem to get executed.

The following example demonstrates this:

Did you know?Explore Trending and Topic pages for more stories like this.
pagetest.php
Line number On/Off | Expand/Contract <html> <head> <title>Using Classes in PHP</title> <META NAME="keywords" CONTENT="PHP, Classes"> </head> <body> <?php include "Page.class"; $Sample = new Page; $Content = "<P>This page was generated by the Page Class example.</P>"; $Sample->SetContent($Content); $Sample->Display1("Test1: "); #$Sample->Display2("Test2: "); #$Sample->Display3("Test3: "); ?> </body></html>

Page.class
Line number On/Off | Expand/Contract <?phpclass Page { var $Content; function Display1($text) { echo "Display1 - " . $text . $this->Content . "n"; } function Display2($text) { echo "Display2 - " . _getContent($text) . "n";; } function Display3($text) { _showContent($text); } function SetContent($text) { $this->Content = $text; } function _getContent($text) { return $text . $this->Content; } function _showContent($text) { echo "_showContent - " . $text . $this->Content . "n"; } }?>
Executing pagetest.php in a browser, with Page.class as shown, works fine and produces the following HTML:
<html>
<head>
<title>Using Classes in PHP</title>
<META NAME="keywords" CONTENT="PHP, Classes">
</head>
<body>

Display1 - Test1: <P>This page was generated by the Page Class example.</P>
</body>

</html>

However, if either or both of the lines
#$Sample->Display2("Test2: ");
#$Sample->Display3("Test3: ");
is/are uncommented and the script is rerun, the following is produced:
<html>
<head>
<title>Using Classes in PHP</title>
<META NAME="keywords" CONTENT="PHP, Classes">
</head>
<body>

Display1 - Test1: <P>This page was generated by the Page Class example.</P>

indicating that the script has terminated prematurely.

Is this a limitation of PHP or have I made some stupid mistake (I suspect the latter)?
No comments posted yet

Your Answer:

Login to answer
108 Like 33 Dislike
Previous forums Next forums
Other forums

Why use interfaces in PHP (OOP)
I am learning OOP in PHP and its been a pretty good learning experience so far. What I didn't unders

Linking with Foreign Keys
I have been getting an erro when I try and link:

create table Faculty_Specialty (I_Name v

Reading Most Recent CSV File in Directory
I thought I had wrapped this project up, but found out that the program I use to FTP a csv file to m

Comparing MySql data and arrays.
I have a mysql table set up like this:
idsubjectbodyuseriddatetimetags1blog subjectblog body111|2

Does design fit in FPGA ?
Hi all,

I've made a large HCC-Design. Because of the program-size the compile process with th

phpMailer will not connect using SMTP
I am trying to use phpMailer with smtp:

Code: [Select]$mailer = new PHPMailer();
$mailer-&

How to login with SAPCPIC userid
I have changed the Password for SAPCPIC in Development Server for 000,001 and 100 client.
But w

word wrap in emails help needed
Hello, I understand how wordwrap works in php and have used it well before. However when I used wor

php code to accept and delete incoming data
Using following HTML Code please show me how to write PHP code to accept and delete the incoming dat

Checking if variable is 0 as opposed to NULL/Empty...
I'm trying to write some code that will retrieve a user's access level from my database and if it do

Sign up to write
Sign up now if you have flare of writing..
Login   |   Register
Follow Us
Indyaspeak @ Facebook Indyaspeak @ Twitter Indyaspeak @ Pinterest RSS



Play Free Quiz and Win Cash