3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 'string'; $b = 'string'; $tmp = array_unique(array($a, $b)); print_r($tmp); if (empty($tmp)) echo 'They match!';

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)
8.3.60.0090.00918.18
8.3.50.0080.00821.09
8.3.40.0150.00018.55
8.3.30.0110.00418.77
8.3.20.0070.00720.22
8.3.10.0060.00321.92
8.3.00.0040.00420.64
8.2.180.0130.00916.32
8.2.170.0140.00722.96
8.2.160.0100.00319.21
8.2.150.0070.00024.18
8.2.140.0080.00024.66
8.2.130.0080.00026.16
8.2.120.0000.00819.36
8.2.110.0000.00922.25
8.2.100.0070.00419.52
8.2.90.0040.00419.28
8.2.80.0060.00317.97
8.2.70.0060.00317.63
8.2.60.0090.00318.04
8.2.50.0000.00818.07
8.2.40.0000.00920.04
8.2.30.0020.00517.96
8.2.20.0000.00817.52
8.2.10.0040.00417.74
8.2.00.0050.00317.60
8.1.280.0120.00925.92
8.1.270.0030.00522.03
8.1.260.0070.00326.35
8.1.250.0040.00428.09
8.1.240.0060.00323.71
8.1.230.0090.00319.07
8.1.220.0000.00717.74
8.1.210.0050.00318.77
8.1.200.0080.00017.36
8.1.190.0040.00417.53
8.1.180.0020.00518.69
8.1.170.0000.00918.63
8.1.160.0040.00422.12
8.1.150.0040.00418.49
8.1.140.0040.00417.43
8.1.130.0070.00017.73
8.1.120.0040.00417.45
8.1.110.0050.00217.44
8.1.100.0040.00417.32
8.1.90.0070.00017.36
8.1.80.0000.00817.43
8.1.70.0070.00017.38
8.1.60.0000.00817.49
8.1.50.0040.00417.43
8.1.40.0070.00317.39
8.1.30.0030.00617.64
8.1.20.0030.00517.68
8.1.10.0040.00417.47
8.1.00.0070.00017.34
8.0.300.0030.00318.77
8.0.290.0030.00517.15
8.0.280.0030.00318.48
8.0.270.0050.00317.23
8.0.260.0030.00316.80
8.0.250.0030.00316.92
8.0.240.0040.00416.93
8.0.230.0000.00716.93
8.0.220.0030.00516.94
8.0.210.0040.00416.93
8.0.200.0000.00716.86
8.0.190.0030.00316.78
8.0.180.0030.00316.90
8.0.170.0000.00816.85
8.0.160.0030.00516.95
8.0.150.0000.00716.87
8.0.140.0040.00416.85
8.0.130.0030.00313.30
8.0.120.0000.00816.88
8.0.110.0000.00716.80
8.0.100.0000.00816.81
8.0.90.0000.00716.82
8.0.80.0080.00816.84
8.0.70.0040.00316.76
8.0.60.0040.00416.81
8.0.50.0040.00416.76
8.0.30.0090.01116.99
8.0.20.0150.00317.40
8.0.10.0040.00416.94
8.0.00.0110.00916.82
7.4.330.0030.00315.00
7.4.320.0000.00716.46
7.4.300.0030.00316.53
7.4.290.0030.00316.53
7.4.280.0000.00716.53
7.4.270.0000.00716.49
7.4.260.0030.00416.56
7.4.250.0000.00716.46
7.4.240.0000.00816.54
7.4.230.0000.00716.66
7.4.220.0030.01516.61
7.4.210.0070.00816.51
7.4.200.0030.00316.29
7.4.190.0030.00316.62
7.4.160.0120.00416.34
7.4.150.0110.01117.40
7.4.140.0090.00817.86
7.4.130.0070.01116.47
7.4.120.0120.00516.57
7.4.110.0100.00716.40
7.4.100.0150.00416.54
7.4.90.0050.01316.35
7.4.80.0170.00019.39
7.4.70.0070.01316.43
7.4.60.0090.00616.50
7.4.50.0050.00316.16
7.4.40.0130.00322.77
7.4.30.0090.01416.40
7.4.00.0050.01014.87
7.3.330.0030.00313.07
7.3.320.0030.00313.11
7.3.310.0000.00616.14
7.3.300.0000.00716.23
7.3.290.0100.00316.14
7.3.280.0100.01016.23
7.3.270.0120.00417.40
7.3.260.0070.01116.25
7.3.250.0140.00616.25
7.3.240.0100.01316.50
7.3.230.0180.00316.39
7.3.210.0060.01116.43
7.3.200.0030.01319.39
7.3.190.0110.00716.19
7.3.180.0060.00916.21
7.3.170.0030.01416.29
7.3.160.0030.01216.31
7.3.120.0050.01214.69
7.3.110.0070.00714.54
7.3.100.0120.00314.70
7.3.90.0060.00614.63
7.3.80.0100.00714.57
7.3.70.0070.00714.42
7.3.60.0070.00714.53
7.3.50.0030.01114.91
7.3.40.0110.00014.39
7.3.30.0060.00614.77
7.3.20.0000.01016.61
7.3.10.0090.00016.59
7.3.00.0070.00716.51
7.2.330.0060.01216.32
7.2.320.0060.01216.42
7.2.310.0030.01316.69
7.2.300.0090.00616.48
7.2.290.0090.00616.65
7.2.250.0110.00414.99
7.2.240.0060.01215.07
7.2.230.0130.00315.03
7.2.220.0130.00015.21
7.2.210.0000.01315.07
7.2.200.0100.00314.88
7.2.190.0110.00415.05
7.2.180.0090.00615.21
7.2.170.0060.00914.75
7.2.110.0150.00616.64
7.2.00.0110.00819.17
7.1.330.0070.00715.90
7.1.320.0090.00315.78
7.1.310.0040.00815.64
7.1.300.0040.00415.55
7.1.290.0000.01515.54
7.1.280.0030.01015.74
7.1.270.0090.00615.56
7.1.260.0030.01015.89
7.1.100.0000.01117.98
7.1.70.0060.00317.13
7.1.60.0110.01419.82
7.1.50.0070.01416.63
7.1.00.0000.03722.38
7.0.200.0030.00516.79
7.0.140.0030.07322.01
7.0.60.0100.05319.91
7.0.50.0070.07017.96
7.0.40.0000.04720.10
7.0.30.0370.07020.23
7.0.20.0270.05320.07
7.0.10.0270.06020.12
7.0.00.0170.07720.33
5.6.280.0100.06720.80
5.6.210.0130.07320.45
5.6.200.0170.05018.18
5.6.190.0070.04320.61
5.6.180.3400.03720.39
5.6.170.0230.08020.54
5.6.160.0100.08020.44
5.6.150.0100.03318.23
5.6.140.0100.04718.15
5.6.130.0000.05318.28
5.6.120.0030.09321.07
5.6.110.0270.04021.06
5.6.100.0130.06021.00
5.6.90.0170.07320.97
5.6.80.0130.05320.38
5.6.70.4570.03720.44
5.5.350.0170.05020.38
5.5.340.0130.07317.98
5.5.330.0030.08020.40
5.5.320.0130.05720.34
5.5.310.0230.04720.37
5.5.300.0030.04717.95
5.5.290.0070.04717.96
5.5.280.0000.04320.75
5.5.270.0100.04720.86
5.5.260.0130.07720.71
5.5.250.0070.07020.68
5.5.240.0100.04020.03
5.4.450.0430.05019.34
5.4.440.0470.05319.45
5.4.430.0500.07019.33
5.4.420.0770.04719.30
5.4.410.0200.07019.48
5.4.400.0270.06018.51
5.4.390.0370.05018.73
5.4.380.0230.05718.46
5.4.370.0100.05318.52
5.4.360.0170.05018.79
5.4.350.0170.05318.80
5.4.340.0200.04718.71
5.4.320.0070.03712.48
5.4.310.0060.04312.47
5.4.300.0070.03912.48
5.4.290.0080.04212.48
5.4.280.0060.04012.38
5.4.270.0080.03812.38
5.4.260.0070.05318.74
5.4.250.0070.07018.79
5.4.240.0130.04718.83
5.4.230.0030.05718.89
5.4.220.0170.05718.79
5.4.210.0100.05319.02
5.4.200.0070.07718.96
5.4.190.0070.05318.95
5.4.180.0070.05318.64
5.4.170.0230.04018.94
5.4.160.0070.05318.80
5.4.150.0070.07318.98
5.4.140.0030.06016.33
5.4.130.0100.04716.26
5.4.120.0030.05716.48
5.4.110.0130.04316.35
5.4.100.0070.05016.48
5.4.90.0130.06716.40
5.4.80.0270.06016.53
5.4.70.0070.05716.51
5.4.60.0200.06316.59
5.4.50.0070.05016.62
5.4.40.0070.05316.57
5.4.30.0170.05716.47
5.4.20.0130.07016.30
5.4.10.0130.05716.29
5.4.00.0170.06015.98
5.3.290.0060.05012.80
5.3.280.0070.05014.75
5.3.270.0200.05014.73
5.3.260.0130.06714.58
5.3.250.0070.06714.44
5.3.240.0100.05714.58
5.3.230.0030.05714.81
5.3.220.0130.04714.71
5.3.210.0130.07314.55
5.3.200.0100.05014.64
5.3.190.0130.05314.72
5.3.180.0070.05314.64
5.3.170.0100.07314.46
5.3.160.0130.04314.55
5.3.150.0100.07714.73
5.3.140.0070.05014.77
5.3.130.0200.07014.76
5.3.120.0130.05714.76
5.3.110.0100.05714.55
5.3.100.0030.05714.20
5.3.90.0070.05014.23
5.3.80.0030.05313.91
5.3.70.0030.05313.84
5.3.60.0070.05014.01
5.3.50.0030.05314.03
5.3.40.0030.07314.02
5.3.30.0030.05014.07
5.3.20.0100.04713.67
5.3.10.0100.06713.82
5.3.00.0130.06013.81
5.2.170.0070.04011.21
5.2.160.0030.04011.21
5.2.150.0100.03711.21
5.2.140.0030.04011.23
5.2.130.0070.03711.08
5.2.120.0130.03010.92
5.2.110.0130.03711.18
5.2.100.0170.02710.99
5.2.90.0030.05010.92
5.2.80.0000.04711.14
5.2.70.0070.04011.07
5.2.60.0070.04011.15
5.2.50.0030.04311.19
5.2.40.0030.04010.97
5.2.30.0070.04011.14
5.2.20.0000.04711.11
5.2.10.0130.04711.01
5.2.00.0130.03310.54
5.1.60.0100.03010.02
5.1.50.0100.04010.08
5.1.40.0200.0409.86
5.1.30.0130.05010.23
5.1.20.0230.04010.56
5.1.10.0100.0479.98
5.1.00.0030.03710.30
5.0.50.0100.0238.50
5.0.40.0030.0378.59
5.0.30.0070.0508.25
5.0.20.0070.0238.25
5.0.10.0070.0278.25
5.0.00.0100.0378.24
4.4.90.0070.0307.60
4.4.80.0000.0237.60
4.4.70.0130.0177.60
4.4.60.0070.0177.60
4.4.50.0030.0277.60
4.4.40.0070.0377.60
4.4.30.0000.0337.60
4.4.20.0000.0237.60
4.4.10.0070.0207.60
4.4.00.0030.0337.60
4.3.110.0070.0207.60
4.3.100.0000.0237.60
4.3.90.0070.0277.60
4.3.80.0100.0277.60
4.3.70.0030.0307.60
4.3.60.0030.0207.60
4.3.50.0030.0277.60
4.3.40.0070.0337.60
4.3.30.0130.0207.60
4.3.20.0000.0237.60
4.3.10.0000.0307.60
4.3.00.0030.0237.67

preferences:
55.91 ms | 401 KiB | 5 Q