PHParadise | category file handling | copy source code of write to first line of file

PHParadise > file handling > write to first line of file

this snippet let's you insert data at the beginning of a file.
it reads the contents and adds new data to the first line of the file.
after this it joins the lines and writes them back to the file again.

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<?php

/*------------------------------------------------------------------------------
|
|                             PHParadise source code
|
|-------------------------------------------------------------------------------
|
| file:             write to first line of file
| category:         file handling
|
| last modified:    Mon, 20 Jun 2005 16:40:41 GMT
| downloaded:       Fri, 25 May 2012 02:57:04 GMT as copy from textarea
|
| code URL:
| http://phparadise.de/php-code/file-handling/write-to-first-line-of-file/
|
| description:
| this snippet let's you insert data at the beginning of a file. it reads the
| contents and adds new data to the first line of the file. after this it joins
| the lines and writes them back to the file again.
|
------------------------------------------------------------------------------*/

// your new data + newline
$new_line = 'some new data here'."\n";

// the filepath
$file = 'temp/file.txt';

// the old data as array
$old_lines = file($file);

// add new line to beginning of array
array_unshift($old_lines,$new_line);

// make string out of array
$new_content = join('',$old_lines);
$fp = fopen($file,'w');

// write string to file
$write = fwrite($fp, $new_content);
fclose($fp);

PHParadise source code of “write to first line of file” in category “file handling”

PHParadise > file handling > write to first line of file

copy the code of file handling / write to first line of file