file_put_contents
read from CSV data (file) into an array with named keys
... with or without 1st row = header (keys)
(see 4th parameter of function call as true / false)
<?php
// --------------------------------------------------------------
function csv_in_array($url,$delm=";",$encl="\"",$head=false) {
$csvxrow = file($url); // ---- csv rows to array ----
$csvxrow[0] = chop($csvxrow[0]);
$csvxrow[0] = str_replace($encl,'',$csvxrow[0]);
$keydata = explode($delm,$csvxrow[0]);
$keynumb = count($keydata);
if ($head === true) {
$anzdata = count($csvxrow);
$z=0;
for($x=1; $x<$anzdata; $x++) {
$csvxrow[$x] = chop($csvxrow[$x]);
$csvxrow[$x] = str_replace($encl,'',$csvxrow[$x]);
$csv_data[$x] = explode($delm,$csvxrow[$x]);
$i=0;
foreach($keydata as $key) {
$out[$z][$key] = $csv_data[$x][$i];
$i++;
}
$z++;
}
}
else {
$i=0;
foreach($csvxrow as $item) {
$item = chop($item);
$item = str_replace($encl,'',$item);
$csv_data = explode($delm,$item);
for ($y=0; $y<$keynumb; $y++) {
$out[$i][$y] = $csv_data[$y];
}
$i++;
}
}
return $out;
}
// --------------------------------------------------------------
?>
fuction call with 4 parameters:
(1) = the file with CSV data (url / string)
(2) = colum delimiter (e.g: ; or | or , ...)
(3) = values enclosed by (e.g: ' or " or ^ or ...)
(4) = with or without 1st row = head (true/false)
<?php
// ----- call ------
$csvdata = csv_in_array( $yourcsvfile, ";", "\"", true );
// -----------------
// ----- view ------
echo "<pre>\r\n";
print_r($csvdata);
echo "</pre>\r\n";
// -----------------
?>
PS: also see: http://php.net/manual/de/function.fgetcsv.php to read CSV data into an array
... and other file-handling methods
^
file
(PHP 4, PHP 5)
file — Reads entire file into an array
Descrierea
array file
( string $filename
[, int $flags = 0
[, resource $context
]] )
Reads an entire file into an array.
Notă:
You can use file_get_contents() to return the contents of a file as a string.
Parametri
- filename
-
Path to the file.
SfatUn URL poate fi utilizat în calitate de denumire a fișierului în această funcție dacă învelișurile fopen au fost activate. Accesați fopen() pentru mai multe detalii despre modul de specificare a denumirii fișierului. Accesați Supported Protocols and Wrappers pentru referințe la informații despre posibilitățile pe care le oferă diferite învelișuri, note despre utilizarea lor și informații despre variabile predefinite pe care le oferă.
- flags
-
The optional parameter flags can be one, or more, of the following constants:
- FILE_USE_INCLUDE_PATH
- Search for the file in the include_path.
- FILE_IGNORE_NEW_LINES
- Do not add newline at the end of each array element
- FILE_SKIP_EMPTY_LINES
- Skip empty lines
- context
-
A context resource created with the stream_context_create() function.
Notă: Susținrea contextelor a fost adăugată începând cu PHP 5.0.0. Pentru o descriere a contextelor, referiți-vă la Funcții de flux.
Valorile întoarse
Returns the file in an array. Each element of the array corresponds to a line in the file, with the newline still attached. Upon failure, file() returns FALSE.
Notă:
Each line in the resulting array will include the line ending, unless FILE_IGNORE_NEW_LINES is used, so you still need to use rtrim() if you do not want the line ending present.
Notă: Dacă PHP nu recunoaște corect terminațiile liniilor atunci când citește fișiere pe, sau create pe un computer Macintosh, atunci activarea opțiunii de configurare la rulare auto_detect_line_endings ar trebui să ajute la soluționarea problemei.
Istoria schimbărilor
| Versiunea | Descriere |
|---|---|
| 5.0.0 | The context parameter was added |
| 5.0.0 | Prior to PHP 5.0.0 the flags parameter only covered include_path and was enabled with 1 |
| 4.3.0 | file() became binary safe |
Exemple
Example #1 file() example
<?php
// Get a file into an array. In this example we'll go through HTTP to get
// the HTML source of a URL.
$lines = file('http://www.example.com/');
// Loop through our array, show HTML source as HTML source; and line numbers too.
foreach ($lines as $line_num => $line) {
echo "Line #<b>{$line_num}</b> : " . htmlspecialchars($line) . "<br />\n";
}
// Another example, let's get a web page into a string. See also file_get_contents().
$html = implode('', file('http://www.example.com/'));
// Using the optional flags parameter since PHP 5
$trimmed = file('somefile.txt', FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
?>
Note
Avertizare
La utilizarea SSL, Microsoft IIS va viola protocolul prin închiderea conexiunii fără a trimite un indicator close_notify. PHP va raporta aceasta ca "SSL: Fatal Protocol Error" (eroare fatală de protocol) când se ajunge la sfârșitul datelor. Pentru a evita aceasta coborât nivelul error_reporting pentru a nu include avertizări. PHP 4.3.7 și versiunile ulterioare pot detecta soft-ul de server IIS care produce astfel de greșeli când deschideți fluxul utilizând învelișul https:// și va suprima automat avertizările. La utilizarea fsockopen() pentru a crea un socket ssl:// programatorul este responsabil să detecteze și să suprime această avertizare.
Vedeți de asemenea
- readfile() - Outputs a file
- fopen() - Opens file or URL
- fsockopen() - Open Internet or Unix domain socket connection
- popen() - Opens process file pointer
- file_get_contents() - Reads entire file into a string
- include()
- stream_context_create() - Create a streams context
add a note
User Contributed Notes
file
twichi at web dot de
13-Sep-2011 06:33
marios88 at gmail dot com
05-Feb-2010 07:59
Quick and easy way to reverse read a file without array_reverse
<?php
$myfile = 'test.txt';
$lines = file($myfile);
for($i=count($lines);$i>0;$i--){
echo $lines[$i];
}
?>
d basin
14-Oct-2009 09:47
this may be obvious, but it took me a while to figure out what I was doing wrong. So I wanted to share. I have a file on my "c:\" drive. How do I file() it?
Don't forget the backslash is special and you have to "escape" the backslash i.e. "\\":
<?php
$lines = file("C:\\Documents and Settings\\myfile.txt");
foreach($lines as $line)
{
echo($line);
}
?>
hope this helps...
PenguinMan98 at usa dot net
21-Apr-2008 09:49
on file() and flock()
My supervisor came up with a brilliant plan to workaround the inability of the file() to work on a flock()'ed file.
We created a dummy file called lockfile.txt. We would flock() lockfile.txt. Once we had a lock on it, we used file() on the file we wanted to read, then altered the file and called fclose on both files.
jon+spamcheck at phpsitesolutions dot com
15-Apr-2008 07:03
A user suggested using rtrim always, due to the line ending conflict with files that have an EOL that differs from the server EOL.
Using rtrim with it's default character replacement is a bad solution though, as it removes all whitespace in addition to the '\r' and '\n' characters.
A good solution using rtrim follows:
<?php
$line = rtrim($line, "\r\n") . PHP_EOL;
?>
This removes only EOL characters, and replaces with the server's EOL character, thus making preg_* work fine when matching the EOL ($)
vbchris at gmail dot com
15-Feb-2008 06:15
If you're getting "failed to open stream: Permission denied" when trying to use either file() or fopen() to access files on another server. Check your host doesn't have any firewall restrictions in-place which prevent outbound connections. This is the case with my host Aplus.net
Reversed: moc dot liamg at senroc dot werdna
11-Jul-2007 08:25
This note applies to PHP 5.1.6 under Windows (although may apply to other versions).
It appears that the 'FILE_IGNORE_NEW_LINES' flag doesn't remove newlines properly when reading Windows-style text files, i.e. files whose lines end in '\r\n'.
Solution: Always use 'rtrim()' in preference to 'FILE_IGNORE_NEW_LINES'.
info at carstanje dot com
27-Nov-2006 05:33
Using file() for reading large text files > 10 Mb gives problems, therefore you should use this instead. It is much slower but it works fine. $lines will return an array with all the lines.
<?php
$handle = @fopen('yourfile...', "r");
if ($handle) {
while (!feof($handle)) {
$lines[] = fgets($handle, 4096);
}
fclose($handle);
}
?>
richardtcunningham at gmail dot com
10-Jul-2006 08:19
justin at visunet dot ie's note of 20-Mar-2003 states
"Note: Now that file() is binary safe it is 'much' slower than it used to be. If you are planning to read large files it may be worth your while using fgets() instead of file()."
I tested fgets(), file_get_contents(), and file() on PHP 4.3.2 and PHP 5 and timed each to be under a second with over 200,000 lines. I do not know if he was testing extremely long lines or what, but I could not duplicate the difference that he mentioned.
jonathan dot gotti at free dot fr
31-Jan-2006 07:52
you can use
$file = array_map('rtrim',file('myfile.txt'));
to remove annoying ending lines of the resulting array.
Nuts
18-Jan-2006 08:16
WARNING ON WINDOWS:
file() function will add "\r\n" in to the end of the row, even if you use only "\n" char to make rows in the file!
On UNIX systems there is no such problem.
dir @ badblue com
12-Sep-2003 08:48
Jeff's array2file function is a good start; here are a couple of improvements (no possibility of handle leak when fwrite fails, additional capability of both string2file and array2file; presumably faster performance through use of implode).
<?php
function String2File($sIn, $sFileOut) {
$rc = false;
do {
if (!($f = fopen($sFileOut, "wa+"))) {
$rc = 1; break;
}
if (!fwrite($f, $sIn)) {
$rc = 2; break;
}
$rc = true;
} while (0);
if ($f) {
fclose($f);
}
return ($rc);
}
function Array2File($aIn, $sFileOut) {
return (String2File(implode("\n", $aIn), $sFileOut));
}
?>
If you're generating your string text using a GET or POST from a TEXTAREA (e.g., a mini-web-text-editor), remember that strip_slashes and str_replace of "/r/n" to "/n" may be necessary as well using these functions.
HTH --dir @ badblue com
John
20-Jul-2003 10:32
after many months of confusion and frustration, i have finally figured out something that i should have noticed the first time around.
you can't file("test.txt") when that same file has been flocked. i guess i didn't have a full understanding of what i was doing when i used flock(). all i had to do was move the flock() around, and all was well.
justin at visunet dot ie
20-Mar-2003 02:36
Note: Now that file() is binary safe it is 'much' slower than it used to be. If you are planning to read large files it may be worth your while using fgets() instead of file() For example:
<?php
$fd = fopen ("log_file.txt", "r");
while (!feof ($fd))
{
$buffer = fgets($fd, 4096);
$lines[] = $buffer;
}
fclose ($fd);
?>
The resulting array is $lines.
I did a test on a 200,000 line file. It took seconds with fgets() compared to minutes with file().
andrea at brancatelli dot it
16-Mar-2002 04:16
file() has a strange behaviour when reading file with both \n and \r as line delimitator (DOS files), since it will return an array with every single line but with just a \n in the end. It seems like \r just disappears.
This is happening with PHP 4.0.4 for OS/2. Don't know about the Windows version.
php@don't_spam_me
09-Feb-2002 05:56
It appears that the file() function causes file access problems for perl cgi scripts accessing the same files. I am using Perl v5.6.0 in linux with PHP/4.0.4pl1. After running a php app using the file() function, any perl cgi trying to access the same file randomly dies returning an internal server error: premature end of script headers.
The simple fix is to use fopen(), fgets() and fclose() instead of file().