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If you are new to PHP or just need to refresh your skills, this is the place to start. This series of tutorials will give you the basic knowledge you will need to create a simple PHP website.

PHP is a reflective programming language originally designed for producing dynamic web pages.[1] PHP is used mainly in server-side scripting, but can be used from a command line interface or in standalone graphical applications. Textual User Interfaces can also be created using ncurses.

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fgets

(PHP 3, PHP 4, PHP 5)

fgets -- Gets line from file pointer

Description

string fgets ( resource handle [, int length] )

Returns a string of up to length - 1 bytes read from the file pointed to by handle. Reading ends when length - 1 bytes have been read, on a newline (which is included in the return value), or on EOF (whichever comes first). If no length is specified, it will keep reading from the stream until it reaches the end of the line.

If an error occurs, returns FALSE.

Common Pitfalls:

People used to the 'C' semantics of fgets() should note the difference in how EOF is returned.

The file pointer must be valid, and must point to a file successfully opened by fopen() or fsockopen() (and not yet closed by fclose()).

A simple example follows:

Example 1. Reading a file line by line

<?php
$handle = @fopen("/tmp/inputfile.txt", "r");
if ($handle) {
    while (!feof($handle)) {
        $buffer = fgets($handle, 4096);
        echo $buffer;
    }
    fclose($handle);
}
?>

Note: The length parameter became optional in PHP 4.2.0. Until PHP 4.3.0, omitting it would assume 1024 as the line length. If the majority of the lines in the file are all larger than 8KB, it is more resource efficient for your script to specify the maximum line length.

Note: This function is binary safe as of PHP 4.3. Earlier versions were not binary safe.

Note: If you are having problems with PHP not recognizing the line endings when reading files either on or created by a Macintosh computer, you might want to enable the auto_detect_line_endings run-time configuration option.

See also fgetss() fread(), fgetc(), stream_get_line(), fopen(), popen(), fsockopen(), and stream_set_timeout().

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Another Useful functions:


function.fgetss | function.fgets |


PHP is a widely-used general-purpose scripting language that is especially suited for Web development and can be embedded into HTML. If you are new to PHP and want to get some idea of how it works, try the introductory tutorial. After that, check out the online manual, and the example archive sites and some of the other resources available in the links section.