 | View Full Version : php preg vs ereg? WebCobra 02-11-2010, 07:55 PM Hi im curious. What is the difference with preg and ereg? and then i find in the php manual that ereg and eregi are bad. In the future, would ereg won't exist? http://i46.tinypic.com/2415jld.png -thanks. csparks 02-11-2010, 10:54 PM ereg(i) is more resource intensive somehow, but I dont know why that is. Plus its depreciated, so using it would cause your scripts to become broken in the future (just depreciated as of 5.3.0 it looks like, so it will be the the not so distant future that it will no longer work at all). larwilliams 02-12-2010, 01:32 AM ereg(i) is more resource intensive somehow, but I dont know why that is. Plus its depreciated, so using it would cause your scripts to become broken in the future (just depreciated as of 5.3.0 it looks like, so it will be the the not so distant future that it will no longer work at all). Yea, apparently all the ereg* functions are going away in PHP6. TonyB 02-12-2010, 03:18 AM preg is the Perl Ccmpatible regex library ereg is the POSIX compliant regex library The preg functions are often faster and you can do much more complex things with them. So I wouldn't waste your time with ereg at this point since it's deprecated and is being removed from PHP. bilalamjad3 02-13-2010, 01:02 AM preg is the Perl Ccmpatible regex library ereg is the POSIX compliant regex library there are huge difference between the two. |