SplFileObject::__construct
(PHP 5 >= 5.1.0, PHP 7)
SplFileObject::__construct — Construct a new file object.
Description
public SplFileObject::__construct ( string $filename [, string $open_mode = "r" [, bool $use_include_path = false , resource $context ]] )
Construct a new file object.
Parameters
filename
The file to read.
Tip
A URL can be used as a filename with this function if the fopen wrappers have been enabled. See fopen() for more details on how to specify the filename. See the Supported Protocols and Wrappers for links to information about what abilities the various wrappers have, notes on their usage, and information on any predefined variables they may provide.
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().
Return Values
No value is returned.
Errors/Exceptions
Throws a RuntimeException if the filename cannot be opened.
Examples
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";
}
?>The above example will output something similar to:
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 ?>See Also
- SplFileInfo::openFile() - Gets an SplFileObject object for the file
- fopen() - Opens file or URL
← SplFileObject
SplFileObject::current →
? 1997–2017 The PHP Documentation GroupLicensed under the Creative Commons Attribution License v3.0 or later.
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