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QuickHashIntSet::add

(PECL quickhash >= Unknown)

QuickHashIntSet::addThis method adds a new entry to the set

说明

public bool QuickHashIntSet::add ( int $key )

This method adds a new entry to the set, and returns whether the entry was added. Entries are by default always added unless QuickHashIntSet::CHECK_FOR_DUPES has been passed when the set was created.

参数

key

The key of the entry to add.

返回值

TRUE when the entry was added, and FALSE if the entry was not added.

范例

Example #1 QuickHashIntSet::add() example

<?php
echo "without dupe checking\n";
$set = new QuickHashIntSet1024 );
var_dump$set->exists) );
var_dump$set->add) );
var_dump$set->exists) );
var_dump$set->add) );

echo 
"\nwith dupe checking\n";
$set = new QuickHashIntSet1024QuickHashIntSet::CHECK_FOR_DUPES );
var_dump$set->exists) );
var_dump$set->add) );
var_dump$set->exists) );
var_dump$set->add) );
?>

以上例程的输出类似于:

without dupe checking
bool(false)
bool(true)
bool(true)
bool(true)

with dupe checking
bool(false)
bool(true)
bool(true)
bool(false)

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