array ( 0 => 'index.php', 1 => 'PHP Manual', ), 'head' => array ( 0 => 'UTF-8', 1 => 'en', ), 'this' => array ( 0 => 'ds-vector.find.php', 1 => 'Ds\\Vector::find', ), 'up' => array ( 0 => 'class.ds-vector.php', 1 => 'Ds\\Vector', ), 'prev' => array ( 0 => 'ds-vector.filter.php', 1 => 'Ds\\Vector::filter', ), 'next' => array ( 0 => 'ds-vector.first.php', 1 => 'Ds\\Vector::first', ), 'alternatives' => array ( ), 'source' => array ( 'lang' => 'en', 'path' => 'reference/ds/ds/vector/find.xml', ), ); $setup["toc"] = $TOC; $setup["toc_deprecated"] = $TOC_DEPRECATED; $setup["parents"] = $PARENTS; manual_setup($setup); ?>
(PECL ds >= 1.0.0)
Ds\Vector::find — Attempts to find a value's index
Returns the index of the value
, or false
if not found.
value
The value to find.
The index of the value, or false
if not found.
Note:
Values will be compared by value and by type.
Example #1 Ds\Vector::find() example
<?php
$vector = new \Ds\Vector(["a", 1, true]);
var_dump($vector->find("a")); // 0
var_dump($vector->find("b")); // false
var_dump($vector->find("1")); // false
var_dump($vector->find(1)); // 1
?>
The above example will output something similar to:
int(0) bool(false) bool(false) int(1)