file_put_contents — Write a string to a file
If filename does not exist, the file is created. Otherwise, the existing file is overwritten, unless the FILE_APPEND flags is set.
Path to the file where to write the data.
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 (with some restrictions), joined with the binary OR (|) operator.
|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.|
|FILE_TEXT||data is written in text mode. If unicode semantics are enabled, the default encoding is UTF-8. You can specify a different encoding by creating a custom context or by using the stream_default_encoding() to change the default. This flag cannot be used with FILE_BINARY. This flag is only available since PHP 6.|
|FILE_BINARY||data will be written in binary mode. This is the default setting and cannot be used with FILE_TEXT. This flag is only available since PHP 6.|
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.
|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|
|6.0.0||Added support for the FILE_TEXT and FILE_BINARY flags|
Note: This function is binary-safe.