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This article mainly shows you "how to solve an incompatible problem in PHP4 and PHP3", which is easy to understand and clear. I hope it can help you solve your doubts. Let me lead you to study and learn this article "how to solve an incompatible problem between PHP4 and PHP3".

There are some incompatibility between PHP4 and PHP3, but this is mainly due to some differences in the settings in PHP.ini in PHP4. These changes are mainly to improve the efficiency of PHP4. Among the changes, the track_vars setting is usually so that the old PHP3 program can no longer run.

The following is a simple program, you can add to each page that needs to read GET,POST,COOKIE variables, you can refer to these variables directly.

Get.variable.inc.php

If (isset ($HTTP_POST_VARS)) {while (list ($key,$val) = each ($HTTP_POST_VARS)) {$key=$val;}} if (isset ($HTTP_GET_VARS)) {while (list ($key,$val) = each ($HTTP_GET_VARS)) {$key=$val }} how to solve a problem of incompatibility between PHP4 and PHP3 if (isset ($HTTP_COOKIE_VARS)) {while (list ($key,$val) = each ($HTTP_COOKIE_VARS)) {$key=$val;}? > the above is all the content of the article "how to solve an incompatible problem between PHP4 and PHP3". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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