Category: PHP

PHP Notes

All keywords (e.g. if, else, while, echo, etc.), classes, functions, and user-defined functions are NOT case-sensitive, but all variable names are case-sensitive.

A variable starts with the $ sign, followed by the name of the variable
A variable name must start with a letter or the underscore character
A variable name cannot start with a number
A variable name can only contain alpha-numeric characters and underscores (A-z, 0-9, and _ )
Variable names are case-sensitive ($age and $AGE are two different variables)

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PHP MySQL Inserting Records Reference

First up there are three examples for inserting records into a MySQL database, one for each of the three following techniques:

  • Using mysqli in a procedural manner.
  • Using mysqli in an object-oriented fashion.
  • Using PDO.

After that there is an example of the same three approaches, but with the addition of using prepared statements for improved security and efficiency.

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