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run code in 300+ PHP versions simultaneously
<?php function & genRefInner() { $var = 1; yield $var; } function & genRefOuter() { return genRefInner(); } foreach(genRefOuter() as $i) { var_dump($i); }
Output for 5.5.25 - 5.5.38, 5.6.9 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0
Notice: Only variable references should be returned by reference in /in/sFR11 on line 9 int(1)
Output for 8.4.15
/bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.
Output for 5.5.0 - 5.5.24, 5.6.0 - 5.6.8
int(1)
Output for 5.4.0 - 5.4.45
Parse error: syntax error, unexpected '$var' (T_VARIABLE) in /in/sFR11 on line 5
Process exited with code 255.

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