3v4l.org

run code in 300+ PHP versions simultaneously
<?php interface HTMLRestrictions {} interface Test { public function mapCKEditor4ToolbarButtonToCKEditor5ToolbarItem(string $cke4_button, HTMLRestrictions $text_format_html_restrictions = NULL): ?string; } class PreExisting implements Test { public function mapCKEditor4ToolbarButtonToCKEditor5ToolbarItem(string $cke4_button): ?string { return NULL; } } class NewlyPossible implements Test { public function mapCKEditor4ToolbarButtonToCKEditor5ToolbarItem(string $cke4_button, HTMLRestrictions $text_format_html_restrictions = NULL): ?string { return NULL; } }
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Declaration of PreExisting::mapCKEditor4ToolbarButtonToCKEditor5ToolbarItem(string $cke4_button): ?string must be compatible with Test::mapCKEditor4ToolbarButtonToCKEditor5ToolbarItem(string $cke4_button, ?HTMLRestrictions $text_format_html_restrictions = null): ?string in /in/trPZF on line 10
Process exited with code 255.

This tab shows result from various feature-branches currently under review by the php developers. Contact me to have additional branches featured.

Active branches

Archived branches

Once feature-branches are merged or declined, they are no longer available. Their functionality (when merged) can be viewed from the main output page


preferences:
153.15 ms | 406 KiB | 5 Q