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+--- Thread: How does one correctly address a callback function inside a CodeIgniter library? (/showthread.php?tid=1318)
How does one correctly address a callback function inside a CodeIgniter library? - ojensen5115 - 02-27-2015
I'm writing my own "bbcode" library around PHP's bbcode PECL extension. In some cases, I need to provide a callback function. As I understand it, within an object one passes callback parameters like this:
'callback' => array($this, 'function_name')
So far so good. When I call the code which does this from inside the library, e.g. if I put $this->test() at the end of the constructor, everything works as expected. However, if I try to call this from outside the library, e.g. $this->bbcode->test() from in some controller, I get the following errors:
Code:
**A PHP Error was encountered**
Severity: Warning
Message: Invalid callback , no array or string given
Filename: libraries/bbcode.php
Line Number: 122
**A PHP Error was encountered**
Severity: Warning
Message: bbcode_parse(): function `' is not callable
Filename: libraries/bbcode.php
Line Number: 122needless to say, the callback does not execute.
After bashing my head at this problem for a while, I figured fine, I'll move these callback functions to a helper instead, and that way I can just use their names directly:
'callback' => 'bbcode_function_name'
After reorganizing my code in this manner, I now get the following error:
Code:
**A PHP Error was encountered**
Severity: Warning
Message: Invalid callback 6.7949295043945E-5, no array or string given
Filename: libraries/bbcode.php
Line Number: 176
**A PHP Error was encountered**
Severity: Warning
Message: bbcode_parse(): function `6.7949295043945E-5' is not callable
Filename: libraries/bbcode.php
Line Number: 176The "function number" does not remain constant with each pageload. At this point, I have no idea what to do...
(more details about the code posted on StackOverflow here)