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PHP Functions
Function: fread (PHP 3, PHP 4, PHP 5) fread -- Binary-safe file readDescriptionstring fread ( resource handle, int length )fread() reads up to length bytes from the file pointer referenced by handle . Reading stops when length bytes have been read, EOF (end of file) is reached, or (for network streams) when a packet becomes available, whichever comes first.
<?php // get contents of a file into a string $filename = "/usr/local/something.txt"; $handle = fopen($filename, "r"); $contents = fread($handle, filesize($filename)); fclose($handle); ?>
Warning On systems which differentiate between binary and text files (i.e. Windows) the file must be opened with 'b' included in fopen() mode parameter.
<?php $filename = "c:\\files\\somepic.gif"; $handle = fopen($filename, "rb"); $contents = fread($handle, filesize($filename)); fclose($handle); ?>
Warning When reading from network streams or pipes, such as those returned when reading remote files or from popen() and fsockopen() , reading will stop after a packet is available. This means that you should collect the data together in chunks as shown in the example below.
<?php $handle = fopen("http://www.example.com/", "rb"); $contents = ''; while (!feof($handle)) { $contents .= fread($handle, 8192); } fclose($handle); ?>
Note: If you just want to get the contents of a file into a string, use file_get_contents() as it has much better performance than the code above. Related Function(s) |