PHP readdir function

: This article mainly introduces the PHP readdir function. if you are interested in the PHP Tutorial, refer to it. I recently learned about php file operations and recorded a note in the readdir () function.

1. in the $ temp = readdir ($ handle) function, readdir obtains the file name and the folder name in $ handle,

Generally, the program traverses the file through the while () loop:

While ($ temp = readdir ($ handel )){}

However, there is a problem in the judgment statement of this writing method: if there is a folder named '0' under $ handle, then $ temp = 0 and the while loop cannot proceed, in this case, other files cannot be traversed, resulting in incorrect program results,

Correct syntax:

While ($ temp = readdir ($ handel ))! = False) {} // if the folder name is 0, then 0! = False, and can still be traversed

The above introduces the PHP readdir function, including some content, and hope to be helpful to friends who are interested in the PHP Tutorial.