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run code in 200+ php & hhvm versions
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<?php $flipCount = 0; do { $flip = rand(0,1); $flipCount ++; if ($flip){ echo "<div class=\"coin\">H</div>"; } else { echo "<div class=\"coin\">T</div>"; } } while ($flip); $verb = "were"; $last = "flips"; if ($flipCount == 1) { $verb = "was"; $last = "flip"; } echo "<p>There {$verb} {$flipCount} {$last}!</p>"; ?>
Output for 4.3.5, 4.3.7 - 4.3.8, 4.4.0 - 4.4.3, 4.4.7, 5.0.4, 5.1.3, 5.1.5 - 5.1.6, 5.2.2, 5.2.4, 5.2.6 - 5.2.7, 5.2.9, 5.3.0, 5.3.6, 5.3.14, 5.3.16, 5.3.19, 5.3.23, 5.3.26, 5.4.5, 5.4.9, 5.4.12, 5.4.20, 5.4.26, 5.4.29, 5.4.32 - 5.4.34, 5.4.38, 5.4.45 - 5.5.0, 5.5.5 - 5.5.6, 5.5.9, 5.5.13, 5.5.19, 5.5.21, 5.5.25, 5.5.28, 5.5.32 - 5.5.33, 5.6.7, 5.6.9 - 5.6.10, 5.6.26, hhvm-3.12.14, 7.0.0, 7.0.6, 7.0.12 - 7.0.13, 7.0.18, 7.2.0
<div class="coin">H</div><div class="coin">T</div><p>There were 2 flips!</p>
Output for 4.3.11, 5.0.2 - 5.0.3, 5.1.4, 5.2.13, 5.3.1, 5.3.4, 5.3.17 - 5.3.18, 5.3.20 - 5.3.21, 5.3.25, 5.3.27 - 5.3.29, 5.4.6, 5.4.8, 5.4.19, 5.4.23, 5.4.25, 5.4.27, 5.4.30, 5.4.43, 5.5.7, 5.5.23, 5.5.34, 5.5.37 - 5.5.38, 5.6.19, 5.6.22, 5.6.24 - 5.6.25, hhvm-3.11.1, hhvm-3.15.4, 7.0.3, 7.0.17, 7.0.19, 7.1.1, 7.1.7
<div class="coin">H</div><div class="coin">H</div><div class="coin">T</div><p>There were 3 flips!</p>
Output for 4.3.3 - 4.3.4, 5.1.1, 5.3.3, 5.4.14, 5.4.37, 5.5.8, 5.6.16, 5.6.20 - 5.6.21, 5.6.28, hhvm-3.10.1, 7.0.4, 7.0.7, 7.0.11, 7.1.6
<div class="coin">H</div><div class="coin">H</div><div class="coin">H</div><div class="coin">T</div><p>There were 4 flips!</p>
Output for 4.3.0 - 4.3.2, 4.3.6, 4.3.9 - 4.3.10, 4.4.4 - 4.4.6, 4.4.8 - 5.0.1, 5.0.5 - 5.1.0, 5.1.2, 5.2.0, 5.2.3, 5.2.5, 5.2.8, 5.2.10 - 5.2.11, 5.2.14, 5.2.16 - 5.2.17, 5.3.2, 5.3.5, 5.3.7 - 5.3.13, 5.3.15, 5.3.22, 5.4.0, 5.4.2 - 5.4.4, 5.4.7, 5.4.10 - 5.4.11, 5.4.13, 5.4.15 - 5.4.18, 5.4.21 - 5.4.22, 5.4.24, 5.4.28, 5.4.31, 5.4.35 - 5.4.36, 5.4.39 - 5.4.40, 5.4.42, 5.4.44, 5.5.1 - 5.5.4, 5.5.10 - 5.5.12, 5.5.14 - 5.5.16, 5.5.20, 5.5.22, 5.5.24, 5.5.27, 5.5.29, 5.5.35 - 5.5.36, 5.6.0 - 5.6.2, 5.6.4 - 5.6.5, 5.6.8, 5.6.11 - 5.6.15, 5.6.17 - 5.6.18, 5.6.23, 5.6.27, 5.6.29 - 5.6.30, hhvm-3.13.2, hhvm-3.17.3, 7.0.1 - 7.0.2, 7.0.5, 7.0.8 - 7.0.10, 7.0.14 - 7.0.15, 7.1.0, 7.1.2 - 7.1.5
<div class="coin">T</div><p>There was 1 flip!</p>
Output for 7.0.20
<div class="coin">H</div><div class="coin">H</div><div class="coin">H</div><div class="coin">H</div><div class="coin">H</div><div class="coin">H</div><div class="coin">H</div><div class="coin">H</div><div class="coin">H</div><div class="coin">T</div><p>There were 10 flips!</p>
Output for 5.2.12, 5.6.6, 7.0.16
<div class="coin">H</div><div class="coin">H</div><div class="coin">H</div><div class="coin">H</div><div class="coin">H</div><div class="coin">H</div><div class="coin">T</div><p>There were 7 flips!</p>
Output for 5.2.1, 5.2.15, 5.3.24, 5.5.30, 5.6.3
<div class="coin">H</div><div class="coin">H</div><div class="coin">H</div><div class="coin">H</div><div class="coin">H</div><div class="coin">T</div><p>There were 6 flips!</p>
Output for 5.4.1, 5.4.41, 5.5.18, 5.5.26, 5.5.31
<div class="coin">H</div><div class="coin">H</div><div class="coin">H</div><div class="coin">H</div><div class="coin">T</div><p>There were 5 flips!</p>