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<?php interface FormInterface { public function getFormId(); public function buildForm(array $form, &$form_state); public function validateForm(array &$form, &$form_state); public function submitForm(array &$form, &$form_state); } class TestForm implements FormInterface { public function getFormId() { } public function buildForm(array $form, array &$form_state) { } public function validateForm(array &$form, &$form_state) { } public function submitForm(array &$form, &$form_state) { } }
Output for 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Fatal error: Declaration of TestForm::buildForm(array $form, array &$form_state) must be compatible with FormInterface::buildForm(array $form, &$form_state) in /in/mDHE1 on line 21
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
Fatal error: Declaration of TestForm::buildForm(array $form, array &$form_state) must be compatible with FormInterface::buildForm(array $form, &$form_state) in /in/mDHE1 on line 16
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28
Fatal error: Declaration of TestForm::buildForm() must be compatible with FormInterface::buildForm(array $form, &$form_state) in /in/mDHE1 on line 16
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Fatal error: Declaration of TestForm::buildForm() must be compatible with that of FormInterface::buildForm() in /in/mDHE1 on line 16
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_ARRAY, expecting '&' or T_VARIABLE in /in/mDHE1 on line 7
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING in /in/mDHE1 on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING in /in/mDHE1 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/mDHE1 on line 3
Process exited with code 255.

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