SplTempFileObject::__construct

(PHP 5 >= 5.1.2, PHP 7)

SplTempFileObject::__constructConstruct a new temporary file object

Descrierea

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

Construct a new temporary file object.

Parametri

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.

Valorile întoarse

Nu este întoarsă nici o valoare.

Erori/Excepții

Throws a RuntimeException if an error occurs.

Exemple

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;
}
?>

Exemplul de mai sus va afișa ceva similar cu:

Written 47 bytes to temporary file.

This is the first line
And this is the second.

A se vedea și

add a note add a note

User Contributed Notes 1 note

up
14
larry dot laski at gmail dot com
8 years ago
Noting that when the tmp file exceeds memory limitations and is written to the system temp directory, it is deleted upon completion of the script it was initially created in. At least that is what I have seen and wanted to document for others since it wasn't clear.
To Top