SplTempFileObject
SPL Types
SplTempFileObject
PHP Manual

# SplTempFileObject::__construct

(PHP 5 >= 5.1.2)

SplTempFileObject::__construct — Construct a new temporary file object

### 説明

SplTempFileObject::__construct ([ integer `$max_memory` ] )

Construct a new temporary file object.

### パラメータ

`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.

### 返り値

値を返しません。

### エラー / 例外

Throws a RuntimeException if an error occurs.

### 例

例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;
}
?>`

上の例の出力は、 たとえば以下のようになります。

    Written 47 bytes to temporary file.

    This is the first line
    And this is the second.

### 参考

- SplFileObject
- PHP input/output streams (for php://temp and php://memory)

SplTempFileObject
SPL Types
SplTempFileObject
PHP Manual