Cara menggunakan $filename php

Question

File handling is an important part of any web application. You often need to open and process a file for different tasks.

Table of Contents Show

PHP Manipulating Files
PHP readfile() Function
PHP Exercises
Definition and Usage
Parameter Values
Technical Details
More Examples

PHP Manipulating Files

PHP has several functions for creating, reading, uploading, and editing files.

Be careful when manipulating files!

When you are manipulating files you must be very careful.

You can do a lot of damage if you do something wrong. Common errors are: editing the wrong file, filling a hard-drive with garbage data, and deleting the content of a file by accident.

PHP readfile() Function

The readfile() function reads a file and writes it to the output buffer.

Assume we have a text file called "webdictionary.txt", stored on the server, that looks like this:

AJAX = Asynchronous JavaScript and XML
CSS = Cascading Style Sheets
HTML = Hyper Text Markup Language
PHP = PHP Hypertext Preprocessor
SQL = Structured Query Language
SVG = Scalable Vector Graphics
XML = EXtensible Markup Language

The PHP code to read the file and write it to the output buffer is as follows (the readfile() function returns the number of bytes read on success):

The readfile() function is useful if all you want to do is open up a file and read its contents.

The next chapters will teach you more about file handling.

PHP Exercises

larutan

Fungsi PHP GLOB: dapatkan dan ubah hasilnya (PHP function GLOB: get and modify the results)

I'm trying to import many xml files that I do not know the name. I use this code:

foreach(glob('OLD/*.xml') as $file) {
$url=  basename($file) . ', ';
$all_urls = array($url);
foreach ($all_urls as $url) {
    $xml = simplexml_load_file($url);

I have a lot of files like agency.xml, annunci_324.xml, annunci_321.xml, ecc...

I only need the files that begin for annunci and end .xml. I also need to delete last value's comma and put it in the last foreach. how can i do it?

larutan

larutan 1:

I think you can check if name contains annunci with strstr function (documentation here)

if(strstr($file, 'annunci')
{
    //we found a file with name we are interessed in.

Now you can build directly your array without caring about commas

$all_urls = array();
foreach(glob('OLD/*.xml') as $file) 
{
   if(strstr($file, 'annunci')
   {
       $all_urls[] = array(basename($file));
   }
}

This way we have all_urls as array of all the files starting with annunci and you can loop in it to simple_load them all.

(by Marcello Storit、Fabio)

larutan

PHP function GLOB: get and modify the results (CC BY‑SA 3.0/4.0)

#PHP

Beberapa waktu lalu, kita telah membahas bagaimana cara export file antar komputer dengan menggunakan FTP pada PHP. Kali ini kita akan membuatnya menjadi otomatis tanpa harus menuliskan nama file nya terlebih dulu. Jadi, kita hanya menuliskan path lokasi file saja dan membacanya secara otomatis file yang ada di dalamnya.

Ok, langsung saja kita coba cara membuatnya. Pertama, kita tentukan dahulu lokasi path yang akan kita gunakan. Kemudian apakah hanya file tertentu saja ataukah semua file. Berikut adalah codenya :

 
	$path = '/var/www/file/';
	$files = glob("*.jpg");
	foreach($files as $filename){
		echo $filename;
	}

Sedikit kita bahas code di atas.
1. $path adalah lokasi file berada sesuai dengan lokasi yang kamu inginkan.
2. $files adalah variabel untuk mendefinisikan fungsi globe. Fungsi ini berfungsi untuk membaca file tergantung pola yang ditentukan.
3. Tanda * untuk membuat suat pola. Jika ditulis, maka berarti pencarian semua karakter. Semisal *.jpg adalah pencarian semua file dengan extensi jpg. Apabila ditulis dengan code *.*, makapencarian semua file dan semua extensi.
4. foreach berfungsi untuk membuat perulangan sesuai dengan jumlah file dan memecahnya menjadi $filename.
5. $filename adalah parameter untuk menampilkan nama file yang telah didapatkan.

Dengan menggunakan code di atas, kita bisa melakukan export file ke server lain dengan menggunakan FTP tanpa harus menuliskan satu persatu file yang akan dikirim. Namun jika kamu tetap mau export nama file tertentu, kamu tetap harus mendefinisakan nama file tersebut.

Nah, demikianlah bagaimana cara Membaca Nama File dengan Glob pada PHP. Semoga dapat bermanfaat.

❮ PHP Filesystem Reference

Example

Return an array of filenames or directories that matches the specified pattern:

<?php
print_r(glob("*.txt"));
?>

The output of the code above could be:

Array (
[0] => target.txt
[1] => source.txt
[2] => test.txt
[3] => test2.txt
)

Definition and Usage

The glob() function returns an array of filenames or directories matching a specified pattern.

Syntax

Parameter Values

Parameter

Description

pattern

Required. Specifies the pattern to search for

flags

Optional. Specifies special settings.

Possible values:

GLOB_MARK - Adds a slash to each item returned
GLOB_NOSORT - Return files as they appear in the directory (unsorted)
GLOB_NOCHECK - Returns the search pattern if no match were found
GLOB_NOESCAPE - Backslashes do not quote metacharacters
GLOB_BRACE - Expands {a,b,c} to match 'a', 'b', or 'c'
GLOB_ONLYDIR - Return only directories which match the pattern
GLOB_ERR - (added in PHP 5.1) Stop on errors (errors are ignored by default)

Technical Details

Return Value:	An array of files/directories that matches the pattern, FALSE on failure
PHP Version:	4.3+
PHP Changelog:	PHP 5.1: GLOB_ERR value added to the flags parameter

More Examples

Example

Return an array of filenames or directories that matches the specified pattern:

<?php
print_r(glob("*.*"));
?>

The output of the code above could be:

Array (
[0] => contacts.csv
[1] => default.php
[2] => target.txt
[3] => source.txt
[4] => tem1.tmp
[5] => test.htm
[6] => test.ini
[7] => test.php
[8] => test.txt
[9] => test2.txt
)

❮ PHP Filesystem Reference