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run code in 150+ php & hhvm versions
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<?php $rand = rand(0,1); var_dump($rand); foo(); bar(); if ($rand) { function foo() { echo bar();} function bar() { return 'bar';} }
Output for 7.0.0 - 7.0.1, 7.0.3, 7.0.5, 7.0.8, 7.1.0
int(0) Fatal error: Uncaught Error: Call to undefined function foo() in /in/XgPvZ:4 Stack trace: #0 {main} thrown in /in/XgPvZ on line 4
Process exited with code 255.
Output for 7.0.2, 7.0.4, 7.0.6 - 7.0.7, 7.0.9 - 7.0.14
int(1) Fatal error: Uncaught Error: Call to undefined function foo() in /in/XgPvZ:4 Stack trace: #0 {main} thrown in /in/XgPvZ on line 4
Process exited with code 255.
Output for 5.0.0 - 5.0.1, 5.0.4, 5.1.1 - 5.1.2, 5.1.4, 5.2.4 - 5.2.6, 5.2.8 - 5.2.9, 5.2.11 - 5.2.12, 5.2.14 - 5.2.15, 5.3.4, 5.3.8 - 5.3.10, 5.3.13 - 5.3.15, 5.3.18, 5.3.20, 5.3.27, 5.4.1, 5.4.3, 5.4.6, 5.4.8 - 5.4.10, 5.4.12, 5.4.14, 5.4.18 - 5.4.20, 5.4.26 - 5.4.29, 5.4.32 - 5.4.35, 5.4.38 - 5.4.39, 5.4.41, 5.4.43, 5.4.45, 5.5.1 - 5.5.3, 5.5.7 - 5.5.8, 5.5.13, 5.5.16, 5.5.19 - 5.5.20, 5.5.25, 5.5.27 - 5.5.28, 5.5.30 - 5.5.31, 5.5.34 - 5.5.35, 5.5.38 - 5.6.1, 5.6.5, 5.6.8, 5.6.14 - 5.6.16, 5.6.19 - 5.6.20, 5.6.22, 5.6.28
int(0) Fatal error: Call to undefined function foo() in /in/XgPvZ on line 4
Process exited with code 255.
Output for 5.0.2 - 5.0.3, 5.0.5 - 5.1.0, 5.1.3, 5.1.5 - 5.2.3, 5.2.7, 5.2.10, 5.2.13, 5.2.16 - 5.3.3, 5.3.5 - 5.3.7, 5.3.11 - 5.3.12, 5.3.16 - 5.3.17, 5.3.19, 5.3.21 - 5.3.26, 5.3.28 - 5.4.0, 5.4.2, 5.4.4 - 5.4.5, 5.4.7, 5.4.11, 5.4.13, 5.4.15 - 5.4.17, 5.4.21 - 5.4.25, 5.4.30 - 5.4.31, 5.4.36 - 5.4.37, 5.4.40, 5.4.42, 5.4.44, 5.5.0, 5.5.4 - 5.5.6, 5.5.9 - 5.5.12, 5.5.14 - 5.5.15, 5.5.18, 5.5.21 - 5.5.24, 5.5.26, 5.5.29, 5.5.32 - 5.5.33, 5.5.36 - 5.5.37, 5.6.2 - 5.6.4, 5.6.6 - 5.6.7, 5.6.9 - 5.6.13, 5.6.17 - 5.6.18, 5.6.21, 5.6.23 - 5.6.25
int(1) Fatal error: Call to undefined function foo() in /in/XgPvZ on line 4
Process exited with code 255.
Output for 4.4.6, 4.4.9
int(0) Fatal error: Call to undefined function: foo() in /in/XgPvZ on line 4
Process exited with code 255.
Output for 4.4.5, 4.4.7 - 4.4.8
int(1) Fatal error: Call to undefined function: foo() in /in/XgPvZ on line 4
Process exited with code 255.
Output for 4.3.3 - 4.3.4, 4.3.7 - 4.3.8, 4.4.1, 4.4.3 - 4.4.4
int(1) Fatal error: Call to undefined function: foo() in /in/XgPvZ on line 4
Process exited with code 255.
Output for 4.3.2, 4.3.5 - 4.3.6, 4.3.9 - 4.4.0, 4.4.2
int(0) Fatal error: Call to undefined function: foo() in /in/XgPvZ on line 4
Process exited with code 255.
Output for 4.3.1
int(1) Fatal error: Call to undefined function: foo() in /in/XgPvZ on line 4
Output for 4.3.0
int(0) Fatal error: Call to undefined function: foo() in /in/XgPvZ on line 4