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run code in 200+ php & hhvm versions
Bugs & Features
<?php function isIndexedArray($array) { return !(bool)count(array_filter(array_keys($array), 'is_string')); } assert(isIndexedArray(['a' => ''])); assert(isIndexedArray(['a']));
based on QLfPU

Shows result from various feature-branches currently under review from the php developers. Contact me to have additional branches featured.

Output for Typed properties v2
Warning: assert(): assert(isIndexedArray(['a' => ''])) failed in /in/HM5tr on line 7
Output for Arrow functions
Warning: assert(): assert(isIndexedArray(['a' => ''])) failed in /in/HM5tr on line 7
Output for Object typehint
Warning: assert(): assert(isIndexedArray(['a' => ''])) failed in /in/HM5tr on line 7
Output for Array change keys
Warning: assert(): assert(isIndexedArray(['a' => ''])) failed in /in/HM5tr on line 7
Output for Lexical anon
Warning: assert(): assert(isIndexedArray(['a' => ''])) failed in /in/HM5tr on line 7

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