[PHP] Variable with name of other variable – “variable variables”
When you write in PHP $$name, parser treats it as variable, wchich name is value of $name – it works like pointer: <? $var1 = ‘test1’; $var2 = ‘test2’; $a = ‘var1′; echo $$a.'<br>’; $a = ‘var2’; echo $$a; ?><? $var1 = ‘test1’; $var2 = ‘test2’; $a = ‘var1′; echo $$a.'<br>’; $a = ‘var2’; echo $$a; ?> output: test1 test2test1 test2