PHP File System
Which one of the following PHP function is used to determine a file’s last access time?

filectime()
filetime()
fileltime()
fileatime()

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PHP File System
What is the difference between stat() and fstat()?

fstat() is an alias of stat()
stat() has nothing to do with files
fstat() has nothing to do with files
While fstat() works on open file pointers, stat() works on files specified by pathname
While stat() works on open file pointers, fstat() works on files specified by pathname

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PHP File System
What should you do if your script is having problem recognizing file endings from a text file saved on a platform different from the one you’re reading it on?

Use a regular expression to detect the last letter of a line
Read the file one character at a time
Use fpos()
Use ftok()
Change the auto_detect_line_endings INI setting

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