It is a good idea to check that the variables your script is receiving are in fact of the correct type in terms of value passed. For example, when receiving some sort of record ID value, 99% of the time we are expecting a numeric value. A simple method to ensure that the variable to be processed is indeed numeric, is through the use of a simple REGEX statement applied using the preg_replace PHP function.
Sometimes it comes in quite handy to strip out all the non-alphanumeric characters from a given string. Of course, we could just use a bog standard preg_replace with a valid regex to achieve this, though the result of doing this might result in a non-readable resulting string.
Today’s little PHP hint is a pretty simple one, but one worth tackling if you are looking for a quick and easy way to strip a particular string pattern off the front and end of a value.
Given a registration code, or something important like that, which often contains information encoded in the alphanumeric string itself, it is sometimes quite useful to be able to simply strip out the letters from the string, leaving only the numeric part behind.
Given a registration code, or something important like that, which often contains information encoded in the alphanumeric string itself, it is sometimes quite useful to be able to simply strip out the numbers from the string, leaving only the letters behind.
Craig Lotter is an established web developer and application programmer, with strong creative urges (which keep bursting out at the most inopportune moments) and a seemingly insatiable need to love all things animated. Living in the beautiful coastal town of Gordon's Bay in South Africa, he games, develops, takes in animated fare, trains under whichever martial arts dojo is closest at the time, and for the most part, simply enjoys life with his amazing wife and daughter.
Oh, and he draws ever now and then too.
This is a collection of things that he has managed to find the time to scribble down since 2007.
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