Output judgment in PHP or JS

Source: Internet
Author: User

Whether in PHP or AJAX, we always use to judge a user's permissions and other issues, according to the different permissions, we need to make different judgments of the code.

Whether it's PHP or AJAX, the operation concept is the same, here is a simple demonstration of it!

Here is one of the simplest PHP judgments

This is the Ajax judgment, satisfies the condition to have the value, does not satisfy is empty, finally adds a click event, is finished.

Difficulty: 1. Ajax, note that an empty array is defined in advance.

2.php, note that the name of the array is not duplicated.

3. This code will be very miscellaneous, pay attention to add good comments

Output judgment in PHP or JS

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