Predefined Exceptions
PHP Manual

AssertionError

(PHP 7)

Introduction

AssertionError is thrown when an assertion made via assert() fails.

Class synopsis

AssertionError extends Error {
/* Inherited methods */
final public string Error::getMessage ( void )
final public Throwable Error::getPrevious ( void )
final public mixed Error::getCode ( void )
final public string Error::getFile ( void )
final public int Error::getLine ( void )
final public array Error::getTrace ( void )
final public string Error::getTraceAsString ( void )
public string Error::__toString ( void )
final private void Error::__clone ( void )
}

Predefined Exceptions
PHP Manual