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run code in 200+ php & hhvm versions
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<?php $total = 0; for ($i=1; $i<=10; $i++) { echo "+",$i; $total = $total + $i; } echo "=",$total; return $total; ?>
based on cso1E
Output for 4.3.0 - 7.3.0rc4
+1+2+3+4+5+6+7+8+9+10=55