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<?php var_dump(substr('a', 1)); var_dump(substr('a', 1, null)); var_dump(substr('a', 1, 0)); var_dump(substr('a', 1, 1)); var_dump(substr('', 0)); var_dump(substr('', 0, null)); var_dump(substr('', 0, 0)); var_dump(substr('', 0, 1)); var_dump(substr('', 1)); var_dump(substr('', 1, null)); var_dump(substr('', 1, 0)); var_dump(substr('', 1, 1));
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
string(0) "" string(0) "" string(0) "" string(0) "" string(0) "" string(0) "" string(0) "" string(0) "" string(0) "" string(0) "" string(0) "" string(0) ""
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
string(0) "" string(0) "" string(0) "" string(0) "" string(0) "" string(0) "" string(0) "" string(0) "" bool(false) bool(false) bool(false) bool(false)
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 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 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
bool(false) bool(false) bool(false) bool(false) bool(false) bool(false) bool(false) bool(false) bool(false) bool(false) bool(false) bool(false)
preferences:
346.13 ms | 404 KiB | 459 Q