(PHP 5)
file_put_contents — Write a string to a file
This function is identical to calling fopen(), fwrite() and fclose() successively to write data to a file.
If filename does not exist, the file is created. Otherwise, the existing file is overwritten, unless the FILE_APPEND flag is set.
Path to the file where to write the data.
The data to write. Can be either a string, an array or a stream resource.
If data is a stream resource, the remaining buffer of that stream will be copied to the specified file. This is similar with using stream_copy_to_stream().
You can also specify the data parameter as a single dimension array. This is equivalent to file_put_contents($filename, implode('', $array)).
The value of flags can be any combination of the following flags, joined with the binary OR (|) operator.
Flag | Description |
---|---|
FILE_USE_INCLUDE_PATH | Search for filename in the include directory. See include_path for more information. |
FILE_APPEND | If file filename already exists, append the data to the file instead of overwriting it. |
LOCK_EX | Acquire an exclusive lock on the file while proceeding to the writing. |
A valid context resource created with stream_context_create().
The function returns the number of bytes that were written to the file, or FALSE on failure.
Beispiel #1 Simple usage example
<?php
$file = 'people.txt';
// Open the file to get existing content
$current = file_get_contents($file);
// Append a new person to the file
$current .= "John Smith\n";
// Write the contents back to the file
file_put_contents($file, $current);
?>
Beispiel #2 Using flags
<?php
$file = 'people.txt';
// The new person to add to the file
$person = "John Smith\n";
// Write the contents to the file,
// using the FILE_APPEND flag to append the content to the end of the file
// and the LOCK_EX flag to prevent anyone else writing to the file at the same time
file_put_contents($file, $person, FILE_APPEND | LOCK_EX);
?>
Version | Beschreibung |
---|---|
5.0.0 | Added context support |
5.1.0 | Added support for LOCK_EX and the ability to pass a stream resource to the data parameter |
Hinweis: Diese Funktion ist binary safe.
Mit dieser Funktion können Sie eine URL als Dateinamen verwenden, falls Sie fopen wrappers ermöglicht haben. Mehr Details dazu, wie Sie den Dateinamen angeben müssen finden Sie bei fopen(). Eine Liste der unterstützten URL Protokolle, die Fähigkeiten der verschiedenen Wrapper, Hinweise zu deren Verwendung und Informationen zu den eventuell vorhandenen vordefinierten Variablen finden Sie unter List of Supported Protocols/Wrappers.