This section contains detail about the File Open & Close in PHP.
File Open & Close
In PHP, fopen function is used to open the file. For opening file we need two parameters :
First : The name of the file which you want to open.
Second : The mode in which you want to open the file.
Example :
<?php
$MyFileName = 'C:\myfile.txt';
$MyFileHandle = fopen($MyFileName, 'r') or die("cant open file");
fclose($MyFileHandle);
?>
The above code will open the file in read mode.
The list of the modes in which file can be open is given below :
| File Modes | Details |
| r | Read only. Starts at the beginning of the file |
| r+ | Read/Write. Starts at the beginning of the file |
| w | Write only. Opens and clears the contents of file; or creates a new file if it doesn't exist |
| w+ | Read/Write. Opens and clears the contents of file; or creates a new file if it doesn't exist |
| a | Append. Opens and writes to the end of the file or creates a new file if it doesn't exist |
| a+ | Read/Append. Preserves file content by writing to the end of the file |
| x | Write only. Creates a new file. Returns FALSE and an error if file already exists |
| x+ | Read/Write. Creates a new file. Returns FALSE and an error if file already exists |
Closing File
In PHP, fclose() method is used to close an open file. Given below the example code
<?php
$MyFileName = 'C:\myfile.txt';
$MyFileHandle = fopen($MyFileName, 'r') or die("cant open file");
fclose($MyFileHandle);
?>
In fclose() method, we pass the variable which holds the 'file handle'.
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