About Regular Expressions in php

In our work, we often use regular expressions to match the data we want, and even replace the matched data with the data we need. It seems difficult to do this, but if you are familiar with regular expressions, it is not a dish.

Example 1: $ string is a string and $ patterns is defined as an index-based array,

The above example will output:

Kemo | addidas | that's it | haha | 11:40:43 | tengx | buyao

In the above example, we can express the values we need to replace in the form of an index array, and then replace them one by one. Is it very convenient?

Next let's take a look at it. We need to convert the date in the string to the current date or something we need.

Example 2:

The above example will output:

Kemo | addidas | that's it | haha | 12:07:55 | weobo | lail