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Dokumen ini menggunakan Manual laman web PHP Cina Lepaskan
(PHP 5 >= 5.1.0)
SplFileObject::__construct — Construct a new file object.
$filename
[, string $open_mode
= "r"
[, bool $use_include_path
= false
[, resource $context
]]] )Construct a new file object.
filename
The file to read.
如已启用fopen 包装器,在此函数中, URL 可作为文件名。关于如何指定文件名详见 fopen() 。各种 wapper 的不同功能请参见 支持的协议和封装协议,注意其用法及其可提供的预定义变量。
open_mode
The mode in which to open the file. See fopen() for a list of allowed modes.
use_include_path
Whether to search in the include_path for filename
.
context
A valid context resource created with stream_context_create() .
没有返回值。
Throws a RuntimeException if the filename
cannot be opened.
Example #1 SplFileObject::__construct() example
This example opens the current file and iterates over its contents line by line.
<?php
$file = new SplFileObject ( __FILE__ );
foreach ( $file as $line_num => $line ) {
echo "Line $line_num is $line " ;
}
?>
以上例程的输出类似于:
Line 0 is <?php Line 1 is $file = new SplFileObject(__FILE__); Line 2 is foreach ($file as $line_num => $line) { Line 3 is echo "Line $line_num is $line"; Line 4 is } Line 5 is ?>
[#1] majna [2014-08-20 22:09:23]
(PHP >= 5.3) If filename is a directory, a LogicException will be thrown: "Cannot use SplFileObject with directories"