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run code in 300+ PHP versions simultaneously
<?php $n=100; // i want {100} printed out print "{$n}\n"; // oh right, let's escape it then print "\{$n}\n"; // oh right, let's escape it then print "\{$n\}\n";
Output for 5.1.1 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
100 \{100} \{100\}
Output for 5.1.0
100 {$n} {$n\}
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5
100 {100} {100\}

preferences:
234.41 ms | 402 KiB | 313 Q