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PHP - Manual: Ds\Vector::find

2024-05-08

Ds\Vector::find

(PECL ds >= 1.0.0)

Ds\Vector::find Attempts to find a value's index

说明

public Ds\Vector::find(mixed $value): mixed

Returns the index of the value, or false if not found.

参数

value

The value to find.

返回值

The index of the value, or false if not found.

注意:

Values will be compared by value and by type.

范例

示例 #1 Ds\Vector::find() example

<?php
$vector 
= new \Ds\Vector(["a"1true]);

var_dump($vector->find("a")); // 0
var_dump($vector->find("b")); // false
var_dump($vector->find("1")); // false
var_dump($vector->find(1));   // 1
?>

以上例程的输出类似于:

int(0)
bool(false)
bool(false)
int(1)
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官方地址:https://www.php.net/manual/en/ds-vector.find.php

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