PHP File Read
From w3cyberlearnings
Contents |
PHP Read A File
Read a file content line by line uses loop; read a file content at once uses fread() function.
Syntax file
Use file() function when the file is not more than 10M. For larger file uses fopen().
file(filename);
Syntax fopen
fopen(filename);
Syntax fread
- Binary safe file read.
fread(filehandle,length);
File Content (fruits.txt)
Apple is red. Apple is also green. Apple is not blue. Orange is yellow. Orange is not blue. Orange is red.
Example 1: file()
- Use file and read file a line at a time.
<?php
$my_file = 'fruits.txt';
$lines = file($my_file);
foreach ($lines as $line) {
echo $line . "<br/>";
}
?>
Output
Apple is red. Apple is also green. Apple is not blue. Orange is yellow. Orange is not blue. Orange is red.
Example 2: fopen()
- fgets() function read at the file pointer.
<?php
$my_file = 'fruits.txt';
$lines = fopen($my_file, 'r') or exit('unable to read');
while (!feof($lines)) {
echo fgets($lines);
echo "<br/>";
}
fclose($lines);
?>
Output
Apple is red. Apple is also green. Apple is not blue. Orange is yellow. Orange is not blue. Orange is red.
Example: fread()
- Read file content use fread() function.
<?php
$file_name = 'fruits.txt';
$file_handler = fopen($file_name, 'r') or exit('can not open the file');
$file_content = fread($file_handler, filesize($file_name));
fclose($file_handler);
echo $file_content;
?>
