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run code in 150+ php & hhvm versions
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<?php $sqlcolumn = 'foo'; $index = 1; echo "\{$sqlcolumn-$index|nokey}";
Output for 5.1.1 - 7.1.0
\{foo-1|nokey}
Output for 5.1.0
{$sqlcolumn-1|nokey}
Output for 4.3.0 - 5.0.5
{foo-1|nokey}