PHP implements a read-only way to open a file _php tips

The example in this article describes how PHP implements a read-only open file. Share to everyone for your reference. The specific analysis is as follows:

PHP can open a file by fopen (), the second parameter is set to "R" means read-only open, function returns a file handle, other functions can use this file handle for different ways to read the file

<?php 
$file = fopen ("/tmp/file.txt", "R");
Print ("Type of File Handle:".) GetType ($file). "\ n");
Print ("The" the "the" the "the" File Handle: ".) Fgets ($file));
Fclose ($file); 
? >

The code above returns the following results

Type of File Handle:resource
The Handle:welcome to sharejs.com PHP tutorials

After the file read is complete, you need to use the fclose () function to close the file handle to free up resources

I hope this article will help you with your PHP program design.