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run code in 300+ PHP versions simultaneously
<?php $greeting = "Howdy"; $audience = "World"; echo 'Single-Quote: '; echo '$greeting, $audience'; echo "\n"; echo "Double-Quote: "; echo "$greeting, $audience"; echo "\n"; echo "Special Double-Quote: "; echo "$greeting, {$audience}!";
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.31, 8.2.0 - 8.2.26, 8.3.0 - 8.3.15, 8.4.1 - 8.4.2
Single-Quote: $greeting, $audience Double-Quote: Howdy, World Special Double-Quote: Howdy, World!
preferences:
87.39 ms | 410 KiB | 5 Q