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<?php $array = ['393451234567', '393479876543']; echo http_build_query(['recipients' => $array]); echo "\n---\n"; echo implode('&', substr_replace($array, 'recipients[]=', 0, 0));
Output for git.master_jit, git.master
recipients%5B0%5D=393451234567&recipients%5B1%5D=393479876543 --- recipients[]=393451234567&recipients[]=393479876543

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