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What is the difference between $name and $$name in PHP?

abhikabhik bangalore, IndiaMember Posts: 1

Hi,
What is the difference between $name and $$name in PHP?

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Comments

  • B00B00 Member Posts: 65 ✭✭✭

    Double dollar sign makes a variable with the name equal to value of original variable.

    $var = 'foo';
    $$var = 'bar';
    echo $foo; // output: bar
    
  • SwatiSwati DelhiMember Posts: 1
    edited July 2016

    $name is variable where as
    $$name is reference variable like $name=swati
    and $$name=tyagi so $swati value is tyagi

    Example with output
    $a="Swati Tyagi";
    $xyz="a";
    echo $$xyz

    Output would be :
    //Swati Tyagi

    For more precise answer Difference between $name and $$name in PHP

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