3v4l.org

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<?php error_reporting(E_ALL); // Simple array: $array = array('1' => 'satu', '2' => 'dua'); $count = count($array); for ($i = 0; $i < $count; $i++) { echo "\nChecking $i: \n"; echo "Bad: " . $array['$i'] . "\n"; echo "Good: " . $array[$i] . "\n"; echo "Bad: {$array['$i']}\n"; echo "Good: {$array[$i]}\n"; }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Checking 0: Warning: Undefined array key "$i" in /in/cM9oQ on line 8 Bad: Warning: Undefined array key 0 in /in/cM9oQ on line 9 Good: Warning: Undefined array key "$i" in /in/cM9oQ on line 10 Bad: Warning: Undefined array key 0 in /in/cM9oQ on line 11 Good: Checking 1: Warning: Undefined array key "$i" in /in/cM9oQ on line 8 Bad: Good: satu Warning: Undefined array key "$i" in /in/cM9oQ on line 10 Bad: Good: satu
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33
Checking 0: Notice: Undefined index: $i in /in/cM9oQ on line 8 Bad: Notice: Undefined offset: 0 in /in/cM9oQ on line 9 Good: Notice: Undefined index: $i in /in/cM9oQ on line 10 Bad: Notice: Undefined offset: 0 in /in/cM9oQ on line 11 Good: Checking 1: Notice: Undefined index: $i in /in/cM9oQ on line 8 Bad: Good: satu Notice: Undefined index: $i in /in/cM9oQ on line 10 Bad: Good: satu
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Checking 0: Notice: Undefined index: $i in /in/cM9oQ on line 8 Bad: Notice: Undefined offset: 0 in /in/cM9oQ on line 9 Good: Notice: Undefined index: $i in /in/cM9oQ on line 10 Bad: Notice: Undefined offset: 0 in /in/cM9oQ on line 11 Good: Checking 1: Notice: Undefined index: $i in /in/cM9oQ on line 8 Bad: Good: satu Notice: Undefined index: $i in /in/cM9oQ on line 10 Bad: Good: satu
preferences:
223.65 ms | 403 KiB | 314 Q