3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo "\n#1: hello\n"; $a = 'hello'; var_dump($a['test']); // notice, but fetches the first char 'h' (undefined/null = 0) var_dump($a[false]); // notice, but fetches the first char 'h' (false = 0) var_dump($a[true]); // notice, but fetches the second char 'e' (true = 1) var_dump($a['2']); // notice, but fetches the second char 'e' (true = 1) echo "\n#2: 42\n"; $a = 42; var_dump($a['test']); // NO NOTICE, returns null var_dump($a[1]); // NO NOTICE, returns null var_dump($a[2]); // NO NOTICE, returns null echo "\n#2: null\n"; $a = null; var_dump($a['test']); // NO NOTICE, returns null var_dump($a[1]); // NO NOTICE, returns null var_dump($a[2]); // NO NOTICE, returns null echo "\nHave fun with it...\nbest regards,\nyour PHP";

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.5.00.0110.01119.90
8.4.150.0020.00014.05
8.4.140.0140.00717.70
8.4.130.0150.00517.79
8.4.120.0140.00420.63
8.4.110.0090.01122.40
8.4.100.0110.01017.87
8.4.90.0110.00518.43
8.4.80.0110.00418.01
8.4.70.0040.00519.84
8.4.60.0120.00719.15
8.4.50.0060.01219.56
8.4.40.0100.00317.85
8.4.30.0100.01019.73
8.4.20.0030.00717.79
8.4.10.0060.00319.90
8.3.280.0020.00114.05
8.3.270.0130.01016.60
8.3.260.0120.00716.56
8.3.250.0120.00718.55
8.3.240.0120.00716.54
8.3.230.0100.00816.54
8.3.220.0090.01017.07
8.3.210.0100.00916.49
8.3.200.0060.00316.54
8.3.190.0100.00516.85
8.3.180.0120.00716.35
8.3.170.0160.00317.00
8.3.160.0070.00718.41
8.3.150.0080.00820.62
8.3.140.0070.00718.47
8.3.130.0090.01316.49
8.3.120.0000.01818.80
8.3.110.0050.00320.94
8.3.100.0160.00024.06
8.3.90.0030.00526.77
8.3.80.0080.00318.37
8.3.70.0070.01116.63
8.3.60.0140.00716.75
8.3.50.0110.01018.22
8.3.40.0040.01118.79
8.3.30.0030.01218.61
8.3.20.0080.00020.20
8.3.10.0050.00323.61
8.3.00.0020.00523.67
8.2.290.0070.00620.47
8.2.280.0070.00218.57
8.2.270.0120.00617.11
8.2.260.0060.01220.05
8.2.250.0000.00816.90
8.2.240.0060.00318.80
8.2.230.0040.00422.58
8.2.220.0210.00037.54
8.2.210.0070.00726.77
8.2.200.0040.00416.88
8.2.190.0100.00316.63
8.2.180.0140.00718.29
8.2.170.0040.01122.96
8.2.160.0070.00720.47
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0040.00422.24
8.2.120.0080.00026.35
8.2.110.0070.00319.14
8.2.100.0040.00818.03
8.2.90.0000.00819.35
8.2.80.0000.00718.03
8.2.70.0000.00817.75
8.2.60.0040.00417.55
8.2.50.0070.00018.22
8.2.40.0060.00320.42
8.2.30.0040.00419.23
8.2.20.0050.00318.07
8.2.10.0040.00417.93
8.2.00.0040.00418.00
8.1.330.0080.00921.79
8.1.320.0090.01116.40
8.1.310.0080.00016.73
8.1.300.0080.01218.32
8.1.290.0040.00418.88
8.1.280.0080.00825.92
8.1.270.0080.00022.18
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0090.00021.43
8.1.230.0070.00417.77
8.1.220.0000.00717.74
8.1.210.0000.00818.77
8.1.200.0080.00017.35
8.1.190.0000.00817.35
8.1.180.0080.00018.10
8.1.170.0030.00518.65
8.1.160.0040.00418.79
8.1.150.0040.00420.07
8.1.140.0040.00419.39
8.1.130.0070.00018.88
8.1.120.0080.00017.42
8.1.110.0050.00317.40
8.1.100.0040.00417.30
8.1.90.0030.00517.37
8.1.80.0000.00817.36
8.1.70.0040.00417.32
8.1.60.0050.00317.51
8.1.50.0030.00517.55
8.1.40.0000.00817.55
8.1.30.0060.00317.61
8.1.20.0040.00417.54
8.1.10.0070.00017.44
8.1.00.0040.00417.40
8.0.300.0040.00418.77
8.0.290.0000.00716.75
8.0.280.0000.00718.32
8.0.270.0030.00317.31
8.0.260.0030.00316.79
8.0.250.0030.00316.97
8.0.240.0030.00316.86
8.0.230.0030.00316.91
8.0.220.0030.00316.87
8.0.210.0020.00516.77
8.0.200.0030.00316.95
8.0.190.0000.00916.87
8.0.180.0000.00816.85
8.0.170.0040.00416.92
8.0.160.0050.00316.93
8.0.150.0040.00416.84
8.0.140.0040.00416.75
8.0.130.0000.00613.34
8.0.120.0080.00016.73
8.0.110.0000.00716.85
8.0.100.0050.00216.88
8.0.90.0040.00416.83
8.0.80.0150.00316.89
8.0.70.0080.00016.76
8.0.60.0050.00316.77
8.0.50.0000.00716.69
8.0.30.0070.01017.15
8.0.20.0120.00817.40
8.0.10.0040.00416.85
8.0.00.0100.01316.64
7.4.330.0000.00516.79
7.4.320.0000.00616.46
7.4.300.0000.00616.43
7.4.290.0050.00216.50
7.4.280.0060.00316.33
7.4.270.0070.00016.33
7.4.260.0000.00716.56
7.4.250.0040.00416.33
7.4.240.0050.00216.54
7.4.230.0000.00816.45
7.4.220.0130.00616.46
7.4.210.0060.00916.50
7.4.200.0040.00316.41
7.4.160.0080.01616.64
7.4.150.0090.00917.40
7.4.140.0090.00917.86
7.4.130.0080.00816.51
7.4.120.0090.01116.47
7.4.110.0130.00616.36
7.4.100.0100.01416.46
7.4.90.0130.01616.47
7.4.80.0080.01519.39
7.4.70.0090.01416.69
7.4.60.0100.00616.42
7.4.50.0060.01216.22
7.4.40.0190.00316.15
7.4.30.0090.00616.30
7.4.00.0080.00815.19
7.3.330.0050.00013.09
7.3.320.0020.00213.13
7.3.310.0000.00716.10
7.3.300.0030.00316.27
7.3.290.0050.00216.28
7.3.280.0090.00716.24
7.3.270.0090.00917.40
7.3.260.0130.00816.38
7.3.250.0110.00716.30
7.3.240.0110.00716.39
7.3.230.0090.01216.50
7.3.210.0150.00716.30
7.3.200.0120.01416.32
7.3.190.0060.01016.49
7.3.180.0040.01116.43
7.3.170.0060.01016.57
7.3.160.0070.00216.48
7.2.330.0120.00616.46
7.2.320.0100.01016.55
7.2.310.0030.01516.45
7.2.300.0040.01516.52
7.2.290.0110.00716.70
7.2.60.0090.00316.94
7.1.200.0050.00515.80
7.1.110.1900.01116.19
7.1.100.2050.01116.24
7.1.90.0170.01216.20
7.1.80.0630.00816.17
7.1.70.0120.01115.26
7.1.60.0340.01433.17
7.1.50.0750.01232.84
7.1.40.0250.01332.57
7.1.30.0250.01432.62
7.1.20.0250.01332.83
7.1.10.1790.01114.72
7.1.00.2520.01014.95
7.0.250.4740.00815.87
7.0.240.2620.00815.77
7.0.230.0860.01215.61
7.0.220.1720.01215.77
7.0.210.0550.01114.68
7.0.200.0070.00915.04
7.0.190.0810.01214.90
7.0.180.0570.01114.29
7.0.170.0170.00714.36
7.0.160.0820.00914.29
7.0.150.4650.01114.41
7.0.140.2780.01314.34
7.0.130.1930.01414.70
7.0.120.2470.00914.52
7.0.110.3240.00714.39
7.0.100.3420.00714.53
7.0.90.2300.00914.48
7.0.80.3160.01214.47
7.0.70.2810.01014.40
7.0.60.2520.00614.25
7.0.50.3670.01114.50
7.0.40.3620.01014.48
7.0.30.3050.00914.58
7.0.20.3790.00814.55
7.0.10.1650.01014.47
7.0.00.1160.01214.65

preferences:
31.9 ms | 403 KiB | 5 Q