Accept only text in string data type

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I have developed one application in php. For the textbox I have given a string data type but it is accepting both text and numbers. what should I do? I want that textbox to accept only the text not the numbers.

Plz help me out........
Thanks....

What I have tried:

I have tried to use is_numeric($a) function but I want the textbox not to accept the number.

Posted 22-Jun-16 23:40pm

Member 12599846

Updated 23-Jun-16 18:31pm

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Comments

Sinisa Hajnal 23-Jun-16 6:25am

Handle keydown event and prevent numbers from being typed in. Google it. Very common and very simple problem. And next time to it first, then come to ask if you don't find anything.

Sergey Alexandrovich Kryukov 23-Jun-16 10:08am

Not clear: "numbers" is also text. Filtering of characters should be done in JavaScript, on the client side, not PHP. Your server side can sanitize the whole text after it is posted to the server side, if you need it.
—SA

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Sergey Alexandrovich Kryukov · Answer 1 · 2016-06-23T04:21:00

Solution 1

Please see my comment to the question.

See, for example, this quick manual: Keyboard Text Input Filtering: Examples.

See also:
keypress,
Event.preventDefault(),
Event.defaultPrevented,
Event.cancelable,
Event.stopPropagation().

—SA

Posted 23-Jun-16 4:21am

Sergey Alexandrovich Kryukov

Member 12599846 · Answer 2 · 2016-06-23T18:31:00

Solution 2

Thank You for the solution ........
But i have implemented the solution in which I am not allowing the keycode(ASCII) values to be entered in the textbox.
Hope it will be useful for others....

Posted 23-Jun-16 18:31pm

Member 12599846