3v4l.org

run code in 300+ PHP versions simultaneously
<?php assert_options(ASSERT_ACTIVE, 0); function foo() { echo 'foo'; return true; } assert(foo()); assert('foo()');
Output for 8.4.1 - 8.4.13
Deprecated: Constant ASSERT_ACTIVE is deprecated in /in/rtvQd on line 3 Deprecated: Function assert_options() is deprecated since 8.3 in /in/rtvQd on line 3 foo
Output for 8.3.0 - 8.3.26
Deprecated: Constant ASSERT_ACTIVE is deprecated in /in/rtvQd on line 3 Deprecated: Function assert_options() is deprecated in /in/rtvQd on line 3 foo
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, 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, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29
foo
preferences:
209.8 ms | 412 KiB | 5 Q