Php Exception Handling

{Code...} php is a weak type language. Why should Exception $ e be written in catch instead of $ e?

  1) {throw new Exception ("Value must be 1 or below");} return true;} // trigger an Exception in the "try" code block try {checkNum (2 ); // If the exception is thrown, this text will not be shown echo 'If you see this, the number is 1 or below ';} // catch Exception catch (** Exception $ e **) {echo 'message :'. $ e-> getMessage () ;}?>

Php is a weak type language. Why should Exception $ e be written in catch instead of $ e?

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  1) {throw new Exception ("Value must be 1 or below");} return true;} // trigger an Exception in the "try" code block try {checkNum (2 ); // If the exception is thrown, this text will not be shown echo 'If you see this, the number is 1 or below ';} // catch Exception catch (** Exception $ e **) {echo 'message :'. $ e-> getMessage () ;}?>

Php is a weak type language. Why should Exception $ e be written in catch instead of $ e?

The exception is based on the type.

Type constraints on function parameters starting with PHP5: http://php.net/manual/zh/language.oop5.typehinting.php

  Var;}/*** another test function * The first parameter must be an array */public function test_array (array $ input_array) {print_r ($ input_array );}} // another class OtherClass {public $ var = 'Hello world ';}

Only objects and arrays (after php 5.1) are supported. Integer and string types are not supported.

Yes, it's a bit like java