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run code in 200+ php & hhvm versions
Bugs & Features
<?php $id = 1; echo 'Single quotes: $id'."\n"; echo "Doubles quotes: $id"."\n"; echo 'Single quotes with concatenation: ' . $id;
Output for 4.3.0 - 7.2.0
Single quotes: $id Doubles quotes: 1 Single quotes with concatenation: 1