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Which one of these 2 examples would perform better:
Example 1:
if($condition_1)
{
if($condition_2)
{
// do something
}
}
Example 2:
if($condition_1 and $condition_2)
{
// do something
}
The difference, if any, will be negligible. You won’t have to worry about the second one evaluating both conditions because of short-circuit evaluation
IMO the 2nd form makes the code more readable. I hate seeing a million indents.