This method stores an in-memory hash to disk

# QuickHashIntHash::saveToFile

(PECL quickhash >= Unknown)

QuickHashIntHash::saveToFile — This method stores an in-memory hash to disk

### Description

public QuickHashIntHash::saveToFile(string `$filename`): void

This method stores an existing hash to a file on disk, in the same format that QuickHashIntHash::loadFromFile() can read.

### Parameters

`filename`
  The filename of the file to store the hash in.

### Return Values

No value is returned.

### Examples

Example #1 QuickHashIntHash::saveToFile() example

`<?php
$hash = new QuickHashIntHash( 1024 );
var_dump( $hash->exists( 4 ) );
var_dump( $hash->add( 4, 43 ) );
var_dump( $hash->exists( 4 ) );
var_dump( $hash->add( 4, 52 ) );
$hash->saveToFile( '/tmp/test.hash' );
?>`
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