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<?php class MyClass{ public function writeit(){ $input = array( array( 'a' => 'vmi', 'tag_name' => 'google' ), array( 'a' => 'vmi2', 'tag_name' => 'technology' ) ); echo "(".implode(', ', array_map("findentry", $input)).")"; } private function findentry ($entry) { return $entry['tag_name']; } } $mc = new MyClass(); $mc->writeit();
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught TypeError: array_map(): Argument #1 ($callback) must be a valid callback or null, function "findentry" not found or invalid function name in /in/iCYVT:17 Stack trace: #0 /in/iCYVT(17): array_map('findentry', Array) #1 /in/iCYVT(26): MyClass->writeit() #2 {main} thrown in /in/iCYVT on line 17
Process exited with code 255.

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