Indentation

• All functions or control statements have their opening brace on the same line as they’re declared on

// Incorrect
function main()
{
}

if($foo)
{
}

// Correct
function main() {
}

if($foo) {
}

• All code blocks inside of a function or control statement are indented 1 level to signify they are a part of the parent block

// Incorrect
if($foo){
$bar = $baz;
}

// Correct
if($foo) {
    $bar = $baz;
}

• All control blocks that span multiple lines must have curly braces surrounding them

// Incorrect
if($foo)
    $bar = $baz;

// Correct
if($foo) {
    $bar = $baz;
}

• For one line control blocks, braces should not be used

    if($foo) $bar = $baz;