- PHP Basics
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- PHP unset()
- PHP Strings
- PHP Functions
- PHP File Handling
- PHP File Handling
- PHP Open File
- PHP Create a File
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- PHP Read File
- PHP feof()
- PHP fgetc()
- PHP fgets()
- PHP Close File
- PHP Delete File
- PHP Append to File
- PHP Copy File
- PHP file_get_contents()
- PHP file_put_contents()
- PHP file_exists()
- PHP filesize()
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- PHP Create Directory
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- PHP require()
- PHP include() vs. require()
- PHP and MySQLi
- PHP and MySQLi
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- PHP Misc Topics
- PHP Object Oriented
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- PHP GET vs. POST
- PHP File Upload
- PHP Image Processing
PHP feof() Function
The PHP feof() function stands for file end-of-file, used to check whether the file pointer has been reached to the end of the file. For example:
<?php $fp = fopen("fresherearth.txt", "r"); while(!feof($fp)) { $line = fgets($fp); echo $line; echo "<br>"; } fclose($fp); ?>
The output produced by above PHP example, is:
Note - The fopen() opens a file.
Note - The fgets() used to read the content of a file, line-by-line.
Note - The fclose() closes a file.
The text, you are seeing as the output, is the same text, that are available in the file fresherearth.txt. Here is the snapshot of the opened file, available in current directory:
Note - The feof() function in PHP, is used to go through all the data using loop. This becomes useful, when you do not know the size of the file, but still have to read the whole content.
In above example, the following PHP code:
while(!feof($fp))
indicates that the loop continues its execution, until the file whose pointer is $fp reached to the end of the file.
PHP feof() Syntax
The syntax of feof() function in PHP, is:
feof(filePointer)
PHP feof() Example | Read File until eof
Now let me create the modified version of above example, since above example only works if the file exists. And if the file does not available in the current directory, then that example will not work. Here is the modified version of that example:
<?php $fp = @fopen("fresherearth.txt", "r"); if($fp) { while(!feof($fp)) { $line = fgets($fp); echo $line; echo "<br>"; } fclose($fp); } else echo "<p>Unable to open the file!</p>"; ?>
Note - The @ before the fopen() function, used to hide the default error message produced by the function, when the file does not exists.
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