isa vs. is_a (WAS: Re: [Phpwiki-talk] CVS ErrorManager.php patch)

[Dan F. <dfr...@cs...>]

Okay, please inform me more about isa(). It seems to throw an error for 
me (PHP 4.3.2), and php.net documents is_a() but not isa().

However, when I "grep -r 'isa(' * | wc -l" I get 122 lines. Is that 122 
bugs? Is there some way that isa() is supposed to work?

Dan

Dan Frankowski wrote:

> diff -b -u -r1.26 ErrorManager.php
> --- ErrorManager.php    2 Jun 2004 18:01:45 -0000       1.26
> +++ ErrorManager.php    10 Jun 2004 19:23:19 -0000
> @@ -227,7 +227,7 @@
>         }
>         else if (($error->errno & error_reporting()) != 0) {
>             if  (($error->errno & $this->_postpone_mask) != 0) {
> -                if (isa($error,'PhpErrorOnce')) {
> +                if (is_a($error,'PhpErrorOnce')) {
>                     $error->removeDoublettes($this->_postponed_errors);
>                     if ( $error->_count < 2 )
>                         $this->_postponed_errors[] = $error;
>
>
>
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