PemFTP and phpmailer use ereg which is deprecated in PHP 5.3

[lloydbudd]

ereg is deprecated in PHP 5.3 . Need to be replaced with preg family of functions.

$ ack ereg -l
wp-admin/includes/class-ftp-pure.php
wp-admin/includes/class-ftp-sockets.php
wp-admin/includes/class-ftp.php
wp-admin/includes/class-pclzip.php
wp-includes/class-phpmailer.php
wp-includes/class-pop3.php
wp-includes/functions.wp-scripts.php
wp-includes/functions.wp-styles.php
wp-includes/gettext.php
wp-includes/rewrite.php

[dd32]

Its a shame 60% of those are external libraries.. looks like some upstream patching is needed.

[Speedboxer]

As well, split will need to be replaced with preg_split.

[eddieringle]

I ran ack-grep myself and found that the WordPress files in the list above do not contain any ereg functions, but phrases that contain the pattern 'ereg' (e.g. $pageregex, wp_deregister_style( $handle )).
The external libraries (class-*.php) do however contain ereg functions.
Has this been fixed, and that is why I am not seeing any ereg functions?

[ryan]

class-pclzip.php uses ereg only if requested and mentions in a comment that it is deprecated.

That leaves the PemFTP files and phpmailer. PemFTP is used by class-wp-filesystem-ftpsockets.php. ftpsockets is used only other fs backends are unavailable. Fixing or replacing PemFTP is not priority.

New versions of phpmailer eliminate the eregi, but those versions require PHP5+. We can look into backporting ereg removal for a future WP release.

[westi]

Updating summary to make it easier to quickly identify what the issue is.

[hakre]

I can take care of phpmailer. I know the class since years and since the main project doesn't upgrade it any longer, we can freely apply changes w/o upstreaming.

[solarissmoke]

#16026 is tagged for 3.2