if value in value

if $x is "test that" and $y is "test"
how do i say
if ($y is in $x)
in this case $y _is_ in $x
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if ($x =~ /$y/)

if( index($x,$y) >= $[ )
ozo, what is the advantage in your method?
It works even if $y contains regular esxpression meta characters (/\Q$y/ would do the same)
it can be faster, since there's no need to compile a regular expression (but you should Benchmark, if you're really concerned about that)
and it demonstrates that there's More Than One Way To Do It.

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