Different between echo and print in php. - DevOpsSchool.com
PHP 7 New Features Online Class | LinkedIn Learning, formerly Lynda.com
Afgprogrammer - Php Case Sensitivity: In PHP, keywords (e.g. if, else, while, echo, etc.), classes, functions, and user-defined functions are not case-sensitive. However; all variable names are case-sensitive! #php #code #coding #casesensitive #