PHP Practical Tips "Continuous update"

This is the problem I encountered when I started the project and how to solve it.

1.eval function

Can convert the string into executable PHP code, if the string is not executable PHP code, you need to precede the @, block notice

2.array_merge function

The Array_merge function is used to merge arrays, and I have encountered a requirement before

　　

Replace the key value that arr_1 the key value in the arr_2 with the value of arr_2

You can then use Array_merge, since the associative array merges the subsequent array to replace the previous array's same life key value

　　

PHP Practical Tips "Continuous update"