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The BadFunctionCallException class

(PHP 5 >= 5.1.0, PHP 7)

Introduction

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

Class synopsis

BadFunctionCallException extends LogicException {

/* Inherited properties */

protected string $message ;

protected int $code ;

protected string $file ;

protected int $line ;

/* Inherited methods */

final public string Exception::getMessage ( void )

final public Throwable Exception::getPrevious ( void )

final public mixed Exception::getCode ( void )

final public string Exception::getFile ( void )

final public int Exception::getLine ( void )

final public array Exception::getTrace ( void )

final public string Exception::getTraceAsString ( void )

public string Exception::__toString ( void )

final private void Exception::__clone ( void )

}

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User Contributed Notes 4 notes

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tom at tomwardrop dot com ¶

7 years ago


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

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evguenia dot chagnon at gmail dot com ¶

5 months 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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-1

roland at mxchange dot org ¶

3 months ago


You can also throw BadMethodCallException within a method when certain pre-conditions to safely call that method are not met.

For example when a method <?php $foo->analyzeData(); ?> has been called but no data as previously been loaded (from file "import" for database, wherever from).

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-5

Dawid Krysiak ¶

6 years ago


Direct known subclasses:
BadMethodCallException

So BadMethodCallException can be used in case the subject function is or should be a part of class / object - it's use defines the case more precisely.

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