Note that this method will cause a PHP fatal error if the file being read contains no recognizable line termination characters and is larger than the allowable memory size for PHP to allocate, i.e. memory_limit set in php.ini or similar. In other words, PHP keeps reading until it finds a line termination, if it runs out of memory first, it will throw a fatal error.
This is different from the file resource fread() function, which allows an optional maximum length argument to be passed to limit this behavior.
SplFileObject::fgets
(PHP 5 >= 5.1.0)
SplFileObject::fgets — Gets line from file
Опис
public string SplFileObject::fgets
( void
)
Gets a line from the file.
Параметри
В цієї функції немає параметрів.
Значення, що повертаються
Returns a string containing the next line from the file, or FALSE on error.
Помилки/Винятки
Throws a RuntimeException if the file cannot be read.
Приклади
Приклад #1 SplFileObject::fgets() example
This example simply outputs the contents of file.txt line-by-line.
<?php
$file = new SplFileObject("file.txt");
while (!$file->eof()) {
echo $file->fgets();
}
?>
Прогляньте Також
- fgets() - Gets line from file pointer
- SplFileObject::fgetss() - Gets line from file and strip HTML tags
- SplFileObject::fgetc() - Gets character from file
- SplFileObject::current() - Retrieve current line of file
add a note
User Contributed Notes 1 note
Chris Johnson ¶
6 years ago
