PHP

php pdo error handling

$database -> errorInfo()[0] # SQLSTATE error code (a five characters alphanumeric identifier defined in the ANSI SQL standard).
$database -> errorInfo()[1] # Driver-specific error code.
$database -> errorInfo()[2] # Driver-specific error message.

error pdo php Exception

// very simple explination .

try{
  codeA... }
catch(EXCEPTION $ex){
  codeB....

}

//the code in the block Catch excuted if there is an erro in the codeA in the block TRY