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phpvariablesevaluate

Simple PHP stuff : variable evaluation

OK, I'm sorry if this question has been asked before, but I don't know the keyword to search for it. The situation is :

$sentence = ' $subject is a genius ';
$subject = " Einstein ";
echo( $sentence );

How can I make it echo "Einstein is a genius" but keep defining variables $sentence before defining $subject ?

You might realize that this is the basic concept of using template. Yes, I'm trying to achieve it. Thanks guys

Solution

  • Try using sprintf:

    $sentence = '%s is a genius';
$subject  = 'Einstein';
echo sprintf($sentence, $subject);

    This will output Einstein is a genius