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run code in 300+ PHP versions simultaneously
<?php $name='foo'; $param_foo='hello'; var_dump(${'param_' . $name}, "${'param_' . $name}", "{${'param_' . $name}}");
Output for 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0 - 8.5.1
Deprecated: Using ${expr} (variable variables) in strings is deprecated, use {${expr}} instead in /in/aRMaq on line 7 string(5) "hello" string(5) "hello" string(5) "hello"
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 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.33
string(5) "hello" string(5) "hello" string(5) "hello"
preferences:
138.17 ms | 409 KiB | 5 Q