Abstract
Variables are used to store data temporarily in memory. Variables only exist as long as the PHP script is running. They are identified with a dollar sign followed by a name. The name of a variable can begin with a letter (a-z or A-Z) or an underscore. Any of the following characters can be a number, a letter, or any ASCII character from 127 to 255 (0x7f – 0xff). There is no restriction on the number of characters in the name. Variable names are case sensitive so $var, $Var, and $VAR will be three different variables.
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© 2016 Frank M. Kromann
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Kromann, F.M. (2016). Variables. In: PHP and MySQL Recipes. Apress, Berkeley, CA. https://doi.org/10.1007/978-1-4842-0605-8_10
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DOI: https://doi.org/10.1007/978-1-4842-0605-8_10
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Publisher Name: Apress, Berkeley, CA
Print ISBN: 978-1-4842-0606-5
Online ISBN: 978-1-4842-0605-8
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