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How do I delete a file using PHP?

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unlink ($filename, $context); 
The following programs illustrate the above approach:Program 1:This program uses the unlink() function to remove a file from a directory. 
Suppose there is a file named "$file_pointer has been deleted" ); }  
?> Output:
Warning: unlink() expects parameter 1 to be a valid path, resource given in C: xampphtdocsserver.php on line 12 Resource id # 3 cannot be deleted due to an error 
Note:If the file does not exist, an error message will appear.


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