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<?php $arr1 = [ 0 => "test zero", 1 => "test one", 2 => "test two", 3 => "test three" ]; $arr2 = [ 1 => "test four", 5 => "test five", 3 => "test six", 4 => "test seven" ]; $i=min(array_keys($arr1)); foreach($arr2 as $k=>$val) { if(array_key_exists($k,$arr1)) { $arr1[$k].='\N, '.$val; } } var_dump($arr1);
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
array(4) { [0]=> string(9) "test zero" [1]=> string(21) "test one\N, test four" [2]=> string(8) "test two" [3]=> string(22) "test three\N, test six" }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/cK95W on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/cK95W on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/cK95W on line 2
Process exited with code 255.