Php/docs/ds-deque.find

• PHP Manual
• Deque
• Attempts to find a value's index

Ds\Deque::find

(PECL ds >= 1.0.0)

Ds\Deque::find — Attempts to find a value's index

说明

public Ds\Deque::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.

Note:

Values will be compared by value and by type.

范例

Example #1 Ds\Deque::find() example

<?php$deque = new \Ds\Deque(["a", 1, true]);var_dump($deque->find("a")); // 0var_dump($deque->find("b")); // falsevar_dump($deque->find("1")); // falsevar_dump($deque->find(1));   // 1?>

以上例程的输出类似于：

int(0)
bool(false)
bool(false)
int(1)