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QuickHashIntSet::add

(PECL quickhash >= Unknown)

QuickHashIntSet::add — This method adds a new entry to the set

Description

代码语言:javascript
复制
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.

Parameters

key

The key of the entry to add.

Return Values

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

Examples

Example #1 QuickHashIntSet::add() example

代码语言:javascript
复制
<?php
echo?"without?dupe?checking\n";
$set?=?new?QuickHashIntSet(?1024?);
var_dump(?$set->exists(?4?)?);
var_dump(?$set->add(?4?)?);
var_dump(?$set->exists(?4?)?);
var_dump(?$set->add(?4?)?);

echo?"\nwith?dupe?checking\n";
$set?=?new?QuickHashIntSet(?1024,?QuickHashIntSet::CHECK_FOR_DUPES?);
var_dump(?$set->exists(?4?)?);
var_dump(?$set->add(?4?)?);
var_dump(?$set->exists(?4?)?);
var_dump(?$set->add(?4?)?);
?>

The above example will output something similar to:

代码语言:javascript
复制
without dupe checking
bool(false)
bool(true)
bool(true)
bool(true)

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

← QuickHashIntSet

QuickHashIntSet::__construct →

代码语言:txt
复制
 ? 1997–2017 The PHP Documentation Group

Licensed under the Creative Commons Attribution License v3.0 or later.

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