- Output for 7.2.29 - 7.2.33, 7.3.16 - 7.3.33, 7.4.3 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
- Warning: shell_exec(): Unable to execute 'which php' in /in/PReo6 on line 3 bool(false)
- Output for 5.4.44 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0, 7.3.12, 7.4.0
- NULL
- Output for 5.4.39 - 5.4.43
- NULL /usr/bin/which: 3: exec: echo: not found
- Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.38
- NULL sh: 1: which: not found
- Output for 4.3.1 - 4.3.11, 4.4.0 - 4.4.9
- string(0) "" sh: 1: which: not found
- Output for 4.3.0
- string(0) ""