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Two quick questions…

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Oct 13.2003

Hi all

1) How do I check if a variable’s value is numerical or alphabetic? (i.e. integer or string)

2) Is there any in-built command for numbering letters? So: a+3 = d, sort of thing? I know there’s way round this but I was just wondering if there was a function so that, for example, hex colour values could be changed easily in calculation using the above equation.

Thanks in advance :o)

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PHP

3 Comments(s) ↴

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@pyroOct 13.2003 — 1: [code=php]$str = "17je4";
if (preg_match("/^[a-zA-Z0-9]+$/", $str)) {
echo "The string is alphanumeric";
}
else {
echo "The string is not alphanumeric";
}[/code]

2: Not that I know of...
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@mityaauthorOct 14.2003 — THanks as always, Pyro

I'll make it my mission to find a programming language you don't know.
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@pyroOct 14.2003 — lol... won't be too hard... ?
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