Basic PHP
Which statement will output $x on the screen?

echo “$x;”;
echo “/$x”;
echo “\$x”;
echo “$$x”;

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Basic PHP
Under what circumstance is it impossible to assign a default value to a parameter while declaring a function?

When the parameter is being declared as passed by reference
Never
When the parameter is Boolean
When the function contains only one parameter
When the function is being declared as a member of a class

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