[SOLVED] Curly braces round variables

[graham23s]

Hi Guys,

 

i thought i was in a pretty good routine when typing my code but now everywhere i see this:

 

{$variable}

 

when i normally do just:

 

$variable

 

can anyone tell me why this needs done? and should i make it a rule of thumb to do it also?

 

thanks guys

 

Graham

[roopurt18]

It depends.

 

Inside of double quotes, using curly braces just makes it more clear to the PHP parser which part of the string is the variable and which part is the string:

// Assume a variable named $prefix
echo "That is $prefixtacular!";
// The PHP parser would look for a variable named $prefixtacular and most likely not find it
echo "That is {$prefix}tacular!";
// No confusion in the above statement

 

The second use of curly brackets concerning variables is for declaring or using a variable with a dynamic name.

// Assume a variable named $name holding the value "bob"
${$name} = "Hello";

The statement above will create a variable named $bob and assign it a value of "Hello"

[graham23s]

ah i see, its just good practice to do it in certain parts

 

thanks mate:)

 

Graham