SplTempFileObject::__construct

(PHP 5 >= 5.1.2, PHP 7)

SplTempFileObject::__construct — Construct a new temporary file object

Description

public SplTempFileObject::__construct ([ int $max_memory ] )

Construct a new temporary file object.

Parameters

max_memory

The maximum amount of memory (in bytes, default is 2 MB) for the temporary file to use. If the temporary file exceeds this size, it will be moved to a file in the system's temp directory.

If max_memory is negative, only memory will be used. If max_memory is zero, no memory will be used.

Return Values

No value is returned.

Errors/Exceptions

Throws a RuntimeException if an error occurs.

Examples

Example #1 SplTempFileObject() example

This example writes a temporary file in memory which can be written to and read from.

<?php
$temp = new SplTempFileObject();
$temp->fwrite("This is the first line\n");
$temp->fwrite("And this is the second.\n");
echo "Written " . $temp->ftell() . " bytes to temporary file.\n\n";

// Rewind and read what was written
$temp->rewind();
foreach ($temp as $line) {
    echo $line;
}
?>

The above example will output something similar to:

Written 47 bytes to temporary file.

This is the first line
And this is the second.