array ( 0 => 'index.php', 1 => 'PHP Manual', ), 'head' => array ( 0 => 'UTF-8', 1 => 'uk', ), 'this' => array ( 0 => 'exception.getprevious.php', 1 => 'Exception::getPrevious', 2 => 'Returns previous Throwable', ), 'up' => array ( 0 => 'class.exception.php', 1 => 'Exception', ), 'prev' => array ( 0 => 'exception.getmessage.php', 1 => 'Exception::getMessage', ), 'next' => array ( 0 => 'exception.getcode.php', 1 => 'Exception::getCode', ), 'alternatives' => array ( ), 'source' => array ( 'lang' => 'en', 'path' => 'language/predefined/exception/getprevious.xml', ), 'history' => array ( ), ); $setup["toc"] = $TOC; $setup["toc_deprecated"] = $TOC_DEPRECATED; $setup["parents"] = $PARENTS; manual_setup($setup); contributors($setup); ?>

Exception::getPrevious

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

Exception::getPreviousReturns previous Throwable

Опис

final public Exception::getPrevious(): ?Throwable

Returns previous Throwable (which had been passed as the third parameter of Exception::__construct()).

Параметри

У цієї функції немає параметрів.

Значення, що повертаються

Returns the previous Throwable if available or null otherwise.

Приклади

Приклад #1 Exception::getPrevious() example

Looping over, and printing out, exception trace.

<?php
class MyCustomException extends Exception {}

function doStuff() {
try {
throw new InvalidArgumentException("You are doing it wrong!", 112);
} catch(Exception $e) {
throw new MyCustomException("Something happened", 911, $e);
}
}


try {
doStuff();
} catch(Exception $e) {
do {
printf("%s:%d %s (%d) [%s]\n", $e->getFile(), $e->getLine(), $e->getMessage(), $e->getCode(), get_class($e));
} while($e = $e->getPrevious());
}
?>

Поданий вище приклад виведе щось схоже на:

/home/bjori/ex.php:8 Something happened (911) [MyCustomException]
/home/bjori/ex.php:6 You are doing it wrong! (112) [InvalidArgumentException]

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