Error::getPrevious
PHP function
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(PHP 7, PHP 8)
Returns previous Throwable
Description
Error::getPrevious(): Throwable|null
Returns previous Throwable (the third parameter of Error::__construct).
Parameters Parameters
Return Values
Returns the previous Throwable if available or null otherwise.
Examples
Error::getPrevious example
Looping over, and printing out, error trace.
php
<?php
class MyCustomError extends Error {}
function doStuff() {
try {
throw new TypeError("You are doing it wrong!", 112);
} catch(Error $e) {
throw new MyCustomError("Something happened", 911, $e);
}
}
try {
doStuff();
} catch(Error $e) {
do {
printf("%s:%d %s (%d) [%s]\n", $e->getFile(), $e->getLine(), $e->getMessage(), $e->getCode(), get_class($e));
} while($e = $e->getPrevious());
}
?>The above example will output something similar to:
output
/home/bjori/ex.php:8 Something happened (911) [MyCustomError]
/home/bjori/ex.php:6 You are doing it wrong! (112) [TypeError]See Also
Throwable::getPrevious