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The BadFunctionCallException class

(PHP 5 >= 5.1.0, PHP 7, PHP 8)

简介

Exception thrown if a callback refers to an undefined function or if some arguments are missing.

类摘要

class BadFunctionCallException extends LogicException {

/* 继承的属性 */

protected string $message = "";

private string $string = "";

protected int $code;

protected string $file = "";

protected int $line;

private array $trace = [];

private ?Throwable $previous = null;

/* 继承的方法 */

public Exception::__construct(string $message = "", int $code = 0, ?Throwable $previous = null)

final public Exception::getMessage(): string

final public Exception::getPrevious(): ?Throwable

final public Exception::getCode(): int

final public Exception::getFile(): string

final public Exception::getLine(): int

final public Exception::getTrace(): array

final public Exception::getTraceAsString(): string

public Exception::__toString(): string

private Exception::__clone(): void

}

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User Contributed Notes 2 notes

down

tom at tomwardrop dot com ¶

13 years ago

A typical use for this exception, is in conjunction with the is_callable() function.

down

evguenia dot chagnon at gmail dot com ¶

6 years ago

For example: 

function foo($arg) {
    $func = 'do' . $arg;
    if (!is_callable($func)) {
        throw new BadFunctionCallException('Function ' . $func . ' is not callable');
    }
}

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