What common mistakes should PHP beginners be aware of when working with variables in different PHP blocks?

One common mistake PHP beginners make when working with variables in different PHP blocks is forgetting to use the `global` keyword when accessing global variables within a function. To solve this issue, make sure to use the `global` keyword before the variable name inside the function to access the global variable. 

$globalVar = "I am a global variable";

function myFunction() {
    global $globalVar;
    echo $globalVar;
}

myFunction(); // Output: I am a global variable

Keywords

Variable scope global keyword local variables superglobals variable naming conventions

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