(PECL quickhash >= Unknown)
QuickHashIntSet::saveToString — This method returns a serialized version of the set
This method returns a serialized version of the set in the same format that loadFromString() can read.
This method returns a string containing a serialized format of the set. Each element is stored as a four byte value in the Endianness that the current system uses.
Example #1 QuickHashIntSet::saveToString() example
<?php
$set = new QuickHashIntSet( 1024 );
var_dump( $set->exists( 4 ) );
var_dump( $set->add( 4 ) );
var_dump( $set->exists( 4 ) );
var_dump( $set->add( 4 ) );
var_dump( $set->saveToString() );
?>