Re: Hello world1

El 31/12/22 a les 9:07, Ashley Sheridan ha escrit:
> 
> 
> On 31 December 2022 06:33:01 GMT, JEFFRY KILLEN <[email protected]> wrote:
>> Hello;
>> The most effective and direct way to do form input screening is with javascript. It can also play a sound an/ or just thow up some
>> disturbing text style sheet styles to inform the user of unacceptible input.
>>
>> As far as PHP is concerned, it can do all the screening. But the user input does have to get to the server unscreened if you do not use javascript
>> or html5 regex imbedded in the text input element to prescreen it. The downside of javascript has been that the user can turn it off in the browser
>> or use a client that does not have javascript. Php also cannot play sounds in the browser (if you want to use sounds). It can serve sounds but javascript
>> is needed to play them for the user.
>>
>> I have been doing web design and development for some time and have seen that well known browsers have all made it fairly difficult to turn javascript
>> off if you do not have development sophistication and many sights use it extensively. Particularly commercial sights use it to fetch, load and display ad
>> content.
>>
>> It also means that you have another programming language to get to know and be confortable with. The best and most comprehensive text I know of
>> is OReilly publications Javascript: The Definitive Guide. The latest version is the 7th edition. But I would also get access to the 6th edition becuase
>> there are significant differences in the language in the 7th edition and the 6th edition will give a better perspective on what the differences are.
>>
>> Something to be aware of: Javascript is NOT java. It is a scripted language that needs a javscript interpreter to run it. It has been developed from the
>> start to be used in web browsers. But it can also be used in PDF (not well known, and Adobe implementation has its own quirks). Google has also
>> developed a server side version of javascript: node.js. I have rudimentary experience with it and understand it to be fairly widely accepted and used.
>>
>> One thing to come to terms with regarding web development: NOTHING is really simple. So expecting simplicity will compromise effectiveness and
>> efficiency.
>>
>> Best;
>> Jeff K.
>>
>>> On Dec 30, 2022, at 9:39 PM, Deliberatus Freeman <[email protected]> wrote:
>>>
>>> Hi. I'm a recent adopter of php, and I am coming to love it.
>>>
>>> I am building a website. I need to accept a form, and it is to accept ONLY letters and numbers; just 1 char of anything else and it must bark like a rabid duck and abort the process. whats the simple reliable way to do this?
>>>
>>> PS: I rent a slice off the end of the box, and cannot play around with configuring things.
>>>
>>>
>>>
>>> Salute!
>>>               -Kirk Bailey
>>>                It is an ill wind that blows no minds.
> 
> Instead of looking at JavaScript, you can do basic checking with HTML form validation: https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/pattern
> 
> However, you will 100% need server side validation in PHP. It doesn't matter if it's difficult to circumvent what exists in the browser, you must always validate server side.

+1
Here at PHP mailing list, it's always better to focus on PHP language, 
and pure HTML interface & results.

-- 

Narcis Garcia

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