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Ensure strings only contain desired characters **solved**


Chips

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Essentially i am trying to check my forms content to ensure that nothing is in the wrong places - eg, telephone numbers are actual numbers, emails are email address etc.

I am having trouble with other fields where i just want to have a-zA-Z0-9... and spaces.
Does anyone know how I allow spaces? I have a text area where strings of non solid text will be entered (ie, strings containing spaces between words!) - but checking them as a-zA-Z means that spaces = error.

Seeing as I am also using mssql as my database, I am concerned about sql injection, and so am wondering how i can "escape" characters that may be troublesome like ', " etc etc. I know addslashes works for mysql - but i am not sure that this escapes characters such as this in mssql - does anyone know?

Many thanks for any suggestions/pointers/help.
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