Hello, On Mon, 16 May 2011 12:07:37 +0100 Stuart Dallas wrote: > Not all functions raise PHP errors when they fail, in fact most don't. Most > will return an error value, and a few throw exceptions. > > As the manual states, the execute method you're using will return true if it > succeeded or false if it failed (http://php.net/pdostatement.execute). You > can then use the errorInfo method to get details of the actual error ( > http://php.net/pdostatement.errorinfo). > > The best piece of advice I can give you if you're just starting out is... > only ever assume that all of the code you write will fail, and make sure it > handles failures appropriately. Any other assumptions are likely to come > back and bite you on the arse one way or another. > > Oh, and read the manual entry for every function, class and method you're > using thoroughly! thanks i will do it but the most of the manual will not understand direct, that will come with time. I have read the manual for PDO, so that i can use it. Before i has my Script with mysqli, but i have read from Prepared Statemants and that they more comfortable and secure and so i has write. All was good, only that not want write in database. Okay thanks all, and im sorry that i disturb with the easy questions. All mistakes in the script i has found with google and the manual, but when not give message, there is problem. Often i not know the correct word which should use to search. For example i have a HTML Table, in this are much Code for calculate the Stock Portfolio. <Value, Dividend, Win, Lose> Thats okay, but i search a function with can tell php that should calculate all data in table. At moment i have write much Variables for every stock which is in Portfolio. Better were that i can copy the mathematical formula from one row/cell in next row/cell, like in excel. That i not found, because i not know what is the right words for searching. I dont know understand what i mean? My English not the best. Thanks for time and help. Silvio -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php