Another ereg_replace challenge

rtcary

Still trying to get better at using ereg_replace, but I am not sure how to strip the path off of

/tcrc/php/tcrc_admin_mem_select.php

so I end up with tcrc_admin_mem_select.php

The path can have varying number of directories.

Thanks in advance...

Todd

Weedpacket

[man]basename[/man]

nrg_alpha

There are options:

$str = '/tcrc/php/tcrc_admin_mem_select.php';
echo basename($str) . "<br />\n";
//             - or -
$match = ltrim(strrchr($str, '/'),'/');
echo $match . "<br />\n";
//             - or -
preg_match('#[^/]+$#', $str, $match);
echo $match[0];

FYI - I would stop using ereg, and learn preg instead, as POSIX (which regex is a part of) will not be included in the core of PHP 6.. Best to future proof your code now while you can.

EDIT - Damn, Weedpacket beat me to it! 😉

sneakyimp

I'm not regex superman, but I believe this expression will capture the path and the filename in the first and second parentheticals, respectively:

#^(.*?)([^/]+)$#

nrg_alpha

snaekyimp, there isn't a need to capture twice, let alone once.. see my last suggestion in my last post. Your way, creates more work for the regex engine.

NogDog

Of course, the initial suggestion to use [man]basename/man is still the simplest solution. 🙂

nrg_alpha

NogDog;10901729 wrote:
Of course, the initial suggestion to use [man]basename/man is still the simplest solution. 🙂

Yep, no doubt! But surpringly, not the fastest.. My looped timed test grants that award to: (drum roll)

$match = ltrim(strrchr($str, '/'),'/');

NogDog

And if I ever code a web app where I care about saving a microsecond or two of execution time over saving my time to maintain the code, I'll keep that in mind. :p

nrg_alpha

Touché

sneakyimp

I like when alpha gives the performance advice. He obviously has a pretty amazing command of the regex concept. Don't stop alpha!

nrg_alpha

sneakyimp;10901743 wrote:
I like when alpha gives the performance advice. He obviously has a pretty amazing command of the regex concept. Don't stop alpha!

Hehe.. thanks for the compliment.. Can't say I have a complete command of regex however... I still drop the ball plenty 😉