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<?php $a = array(1,2,3); foreach($a AS &$y) { $y = $y*2; } echo $y , PHP_EOL; foreach($a AS $y) { echo $y.', '; } echo PHP_EOL, $y , PHP_EOL; foreach($a AS $x) { echo $x.', '; } echo PHP_EOL, $x , PHP_EOL;
Output for 5.0.2 - 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 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0, 7.1.6 - 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0
6 2, 4, 4, 4 2, 4, 4, 4
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 7.1.5

Process exited with code 137.
Output for 5.0.0 - 5.0.1
6 Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/CCadi on line 9 PHP_EOL2, 4, 4, Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/CCadi on line 14 PHP_EOL4 Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/CCadi on line 14 PHP_EOL2, 4, 4, Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/CCadi on line 20 PHP_EOL4 Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/CCadi on line 20 PHP_EOL
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected '&', expecting T_VARIABLE or '$' in /in/CCadi on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected '&', expecting T_VARIABLE or '$' in /in/CCadi on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_VARIABLE' or `'$'' in /in/CCadi on line 5
Process exited with code 255.
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