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

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

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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?

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

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