How important is it to remember to use the $ sign before variable names in PHP?

It is crucial to remember to use the $ sign before variable names in PHP because it signifies that the following word is a variable. Without the $ sign, PHP will interpret the word as a constant or a string, leading to errors in the code. Always ensure to include the $ sign before variable names to avoid syntax errors and ensure proper variable declaration. 

// Incorrect way of declaring a variable
name = "John Doe";

// Correct way of declaring a variable
$name = "John Doe";

Keywords

PHP variable names $ sign syntax programming

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