3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = ""; if ("" == $a) { echo 1; } if ($a == "") { echo 2; }

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)
8.3.40.0100.01018.67
8.3.30.0000.01418.55
8.3.20.0070.00018.77
8.3.10.0030.00620.54
8.3.00.0050.00319.13
8.2.170.0100.00722.96
8.2.160.0130.00322.25
8.2.150.0080.00024.18
8.2.140.0070.00024.66
8.2.130.0040.00426.16
8.2.120.0080.00019.77
8.2.110.0040.00721.12
8.2.100.0070.00417.78
8.2.90.0050.00319.17
8.2.80.0080.00017.80
8.2.70.0050.00317.50
8.2.60.0040.00418.03
8.2.50.0030.00518.07
8.2.40.0000.00719.95
8.2.30.0080.00017.96
8.2.20.0030.00517.60
8.2.10.0040.00417.50
8.2.00.0040.00417.60
8.1.270.0040.00424.66
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0060.00322.65
8.1.230.0070.00420.97
8.1.220.0040.00417.74
8.1.210.0080.00018.90
8.1.200.0030.00617.23
8.1.190.0050.00317.28
8.1.180.0000.00818.10
8.1.170.0050.00318.71
8.1.160.0040.00418.77
8.1.150.0040.00418.68
8.1.140.0030.00617.45
8.1.130.0030.00317.81
8.1.120.0000.00717.54
8.1.110.0000.00817.37
8.1.100.0000.00717.43
8.1.90.0050.00317.45
8.1.80.0000.00717.38
8.1.70.0030.00317.43
8.1.60.0050.00317.50
8.1.50.0090.00017.45
8.1.40.0000.00817.54
8.1.30.0040.00417.54
8.1.20.0000.00817.59
8.1.10.0040.00417.50
8.1.00.0040.00417.43
8.0.300.0000.00720.08
8.0.290.0000.00716.75
8.0.280.0000.00818.40
8.0.270.0030.00317.25
8.0.260.0000.00716.74
8.0.250.0000.00716.86
8.0.240.0040.00416.90
8.0.230.0040.00416.88
8.0.220.0030.00316.79
8.0.210.0070.00016.82
8.0.200.0000.00716.76
8.0.190.0000.00716.79
8.0.180.0030.00416.78
8.0.170.0050.00316.87
8.0.160.0000.00816.87
8.0.150.0040.00416.80
8.0.140.0070.00016.71
8.0.130.0000.00713.34
8.0.120.0080.00016.74
8.0.110.0030.00516.83
8.0.100.0050.00316.78
8.0.90.0030.00316.95
8.0.80.0090.00616.85
8.0.70.0040.00416.78
8.0.60.0000.00816.88
8.0.50.0040.00416.78
8.0.30.0090.00917.05
8.0.20.0140.00517.19
8.0.10.0070.00016.99
8.0.00.0070.01316.88
7.4.330.0020.00214.76
7.4.320.0030.00316.61
7.4.300.0000.00716.43
7.4.290.0040.00416.60
7.4.280.0070.00216.49
7.4.270.0030.00316.49
7.4.260.0030.00313.18
7.4.250.0030.00416.57
7.4.240.0000.00716.51
7.4.230.0030.00516.39
7.4.220.0100.01116.50
7.4.210.0060.01016.56
7.4.200.0000.00716.61
7.4.190.0000.00716.36
7.4.160.0170.00016.53
7.4.150.0120.00617.07
7.4.140.0130.00317.25
7.4.130.0090.00916.52
7.4.120.0080.01116.49
7.4.110.0090.00916.53
7.4.100.0040.01416.52
7.4.90.0100.00716.59
7.4.80.0060.01118.80
7.4.70.0110.01416.39
7.4.60.0090.01216.59
7.4.50.0000.00623.17
7.4.40.0110.00721.69
7.4.30.0140.00716.54
7.4.10.0110.00316.38
7.4.00.0090.00815.18
7.3.330.0030.00313.04
7.3.320.0040.00413.19
7.3.310.0080.00016.03
7.3.300.0030.00316.11
7.3.290.0110.00416.19
7.3.280.0090.00616.20
7.3.270.0170.00017.07
7.3.260.0110.00718.24
7.3.250.0130.00816.29
7.3.240.0070.01016.52
7.3.230.0060.01016.27
7.3.210.0060.01016.58
7.3.200.0160.00019.39
7.3.190.0130.01016.61
7.3.180.0070.01016.16
7.3.170.0120.00316.41
7.3.160.0090.00616.32
7.3.130.0110.00316.49
7.3.120.0060.00915.22
7.3.110.0040.01015.28
7.3.100.0080.00915.11
7.3.90.0040.00815.31
7.3.80.0040.00815.10
7.3.70.0060.01015.10
7.3.60.0030.01315.28
7.3.50.0060.00715.18
7.3.40.0070.00715.23
7.3.30.0040.01015.09
7.3.20.0060.00716.93
7.3.10.0060.01017.07
7.3.00.0060.00616.93
7.2.330.0080.00916.60
7.2.320.0130.00916.63
7.2.310.0060.01216.53
7.2.300.0070.01016.45
7.2.290.0070.01316.65
7.2.260.0070.01416.30
7.2.250.0080.01015.48
7.2.240.0060.01015.34
7.2.230.0080.00815.52
7.2.220.0060.00615.50
7.2.210.0080.00815.56
7.2.200.0040.01115.25
7.2.190.0080.00915.29
7.2.180.0070.00615.33
7.2.170.0110.00415.53
7.2.160.0000.01316.45
7.2.150.0100.00718.36
7.2.140.0000.01018.28
7.2.130.0110.00418.43
7.2.120.0030.00718.27
7.2.110.0050.00518.19
7.2.100.0030.01018.32
7.2.90.0160.00318.18
7.2.80.0090.00618.32
7.2.70.0070.01018.19
7.2.60.0130.00318.52
7.2.50.0040.01218.40
7.2.40.0030.01118.17
7.2.30.0070.01018.30
7.2.20.0070.00718.40
7.2.10.0030.01018.12
7.2.00.0050.01018.88
7.1.330.0090.00616.24
7.1.320.0040.01016.09
7.1.310.0060.00816.12
7.1.300.0050.01016.09
7.1.290.0060.00916.03
7.1.280.0050.01016.11
7.1.270.0050.00816.15
7.1.260.0070.00716.24
7.1.250.0070.01017.12
7.1.240.0050.00517.05
7.1.230.0000.01417.22
7.1.220.0060.01017.13
7.1.210.0100.00717.01
7.1.200.0030.00917.21
7.1.190.0030.01017.06
7.1.180.0090.00317.24
7.1.170.0080.00817.17
7.1.160.0090.00916.98
7.1.150.0100.00317.07
7.1.140.0070.00717.30
7.1.130.0070.00317.18
7.1.120.0050.00517.08
7.1.110.0030.01017.15
7.1.100.0040.00717.47
7.1.90.0090.00617.00
7.1.80.0030.01017.10
7.1.70.0050.00617.12
7.1.60.0050.00918.34
7.1.50.0030.01116.98
7.1.40.0060.01317.22
7.1.30.0070.00417.16
7.1.20.0030.00916.96
7.1.10.0040.01517.20
7.1.00.0060.03619.86
7.0.330.0000.01116.99
7.0.320.0040.01116.79
7.0.310.0050.00516.91
7.0.300.0040.00716.88
7.0.290.0000.01117.04
7.0.280.0060.00916.87
7.0.270.0090.00616.99
7.0.260.0040.00816.89
7.0.250.0000.01316.82
7.0.240.0130.00317.01
7.0.230.0100.00316.95
7.0.220.0070.00316.99
7.0.210.0030.01017.02
7.0.200.0060.00816.83
7.0.190.0100.00716.85
7.0.180.0110.00017.12
7.0.170.0080.00416.80
7.0.160.0070.00716.93
7.0.150.0060.00916.80
7.0.140.0020.04219.54
7.0.130.0060.00616.88
7.0.120.0000.02419.38
7.0.110.0040.01116.73
7.0.100.0090.00616.96
7.0.90.0030.01016.68
7.0.80.0110.00016.68
7.0.70.0040.00816.77
7.0.60.0100.03318.40
7.0.50.0050.04317.28
7.0.40.0060.04616.34
7.0.30.0090.03616.35
7.0.20.0080.03816.26
7.0.10.0060.04016.26
7.0.00.0050.04516.22
5.6.400.0040.01115.91
5.6.390.0060.00315.65
5.6.380.0090.00615.77
5.6.370.0030.01015.97
5.6.360.0070.00715.80
5.6.350.0040.01515.56
5.6.340.0000.01415.86
5.6.330.0070.00715.67
5.6.320.0090.00615.95
5.6.310.0000.01115.91
5.6.300.0100.00716.16
5.6.290.0090.00615.68
5.6.280.0040.04118.50
5.6.270.0030.01015.85
5.6.260.0060.00615.53
5.6.250.0090.00315.82
5.6.240.0080.00315.78
5.6.230.0100.00015.66
5.6.220.0030.00915.82
5.6.210.0110.04118.17
5.6.200.0060.02316.91
5.6.190.0160.03916.92
5.6.180.0110.04217.07
5.6.170.0100.04017.02
5.6.160.0100.03317.05
5.6.150.0030.04516.98
5.6.140.0050.04716.81
5.6.130.0090.04016.99
5.6.120.0130.04016.85
5.6.110.0050.04016.92
5.6.100.0040.02617.13
5.6.90.0020.05016.99
5.6.80.0050.04416.61
5.6.70.0100.04016.60
5.6.60.0080.03516.65
5.6.50.0070.03316.62
5.6.40.0060.02816.69
5.6.30.0020.02916.54
5.6.20.0100.03816.71
5.6.10.0020.04916.65
5.6.00.0070.04316.46
5.5.380.0140.00015.77
5.5.370.0100.00015.64
5.5.360.0090.00615.48
5.5.350.0150.04618.11
5.5.340.0030.04816.89
5.5.330.0080.03816.81
5.5.320.0070.03716.83
5.5.310.0080.04316.77
5.5.300.0060.04516.85
5.5.290.0050.04516.72
5.5.280.0050.04216.85
5.5.270.0040.04316.75
5.5.260.0060.03616.83
5.5.250.0070.04016.57
5.5.240.0060.03516.33
5.5.230.0100.04016.58
5.5.220.0050.03716.51
5.5.210.0090.04016.53
5.5.200.0050.03316.48
5.5.190.0080.03916.46
5.5.180.0020.04616.37
5.5.170.0070.00315.41
5.5.160.0050.03016.54
5.5.150.0050.03416.55
5.5.140.0030.04816.49
5.5.130.0100.04016.39
5.5.120.0100.04016.44
5.5.110.0070.04016.37
5.5.100.0090.03716.32
5.5.90.0050.03716.27
5.5.80.0050.02416.30
5.5.70.0050.04116.37
5.5.60.0100.03716.30
5.5.50.0020.03616.41
5.5.40.0100.04016.43
5.5.30.0080.02716.38
5.5.20.0030.02416.43
5.5.10.0070.04016.39
5.5.00.0060.04616.42
5.4.450.0070.03815.99
5.4.440.0080.02816.04
5.4.430.0060.04015.94
5.4.420.0080.02515.83
5.4.410.0060.03815.84
5.4.400.0090.03615.73
5.4.390.0030.04715.71
5.4.380.0050.03615.68
5.4.370.0110.03115.70
5.4.360.0060.03015.69
5.4.350.0050.02415.78
5.4.340.0070.04315.74
5.4.330.0040.00412.45
5.4.320.0060.02715.71
5.4.310.0070.04015.69
5.4.300.0050.03915.75
5.4.290.0120.03815.76
5.4.280.0070.04215.65
5.4.270.0030.03715.59
5.4.260.0100.04015.67
5.4.250.0050.02315.68
5.4.240.0060.03915.75
5.4.230.0050.04415.76
5.4.220.0060.04115.88
5.4.210.0020.03715.72
5.4.200.0050.04315.69
5.4.190.0090.03015.75
5.4.180.0030.04515.78
5.4.170.0080.03715.70
5.4.160.0030.04415.68
5.4.150.0050.03115.68
5.4.140.0070.02714.43
5.4.130.0060.04114.34
5.4.120.0130.01614.33
5.4.110.0050.03214.41
5.4.100.0030.02314.37
5.4.90.0030.02014.42
5.4.80.0080.01914.38
5.4.70.0050.02014.45
5.4.60.0040.02114.40
5.4.50.0020.02414.39
5.4.40.0030.02114.34
5.4.30.0050.02114.36
5.4.20.0080.01814.37
5.4.10.0050.02214.33
5.4.00.0020.02314.17
5.3.290.0080.04113.73
5.3.280.0040.04613.59
5.3.270.0070.04313.65
5.3.260.0050.03613.67
5.3.250.0080.04413.73
5.3.240.0060.04313.69
5.3.230.0130.03913.77
5.3.220.0090.03213.61
5.3.210.0050.04613.57
5.3.200.0090.03313.67
5.3.190.0050.02713.62
5.3.180.0080.02213.82
5.3.170.0080.03213.77
5.3.160.0060.02713.77
5.3.150.0050.02413.65
5.3.140.0110.02113.54
5.3.130.0050.02513.66
5.3.120.0080.02413.58
5.3.110.0060.02513.61
5.3.100.0130.02013.32
5.3.90.0120.02013.54
5.3.80.0050.02413.30
5.3.70.0050.02413.32
5.3.60.0060.02313.38
5.3.50.0080.02113.26
5.3.40.0030.02413.21
5.3.30.0030.02613.25
5.3.20.0060.02213.17
5.3.10.0050.02213.08
5.3.00.0090.02213.00
5.2.170.0030.02711.09
5.2.160.0070.02310.96
5.2.150.0000.03011.07
5.2.140.0000.03310.92
5.2.130.0100.02010.92
5.2.120.0030.02711.24
5.2.110.0030.02711.04
5.2.100.0000.03010.93
5.2.90.0070.02311.07
5.2.80.0070.03011.07
5.2.70.0030.02711.23
5.2.60.0030.02711.19
5.2.50.0070.02311.01
5.2.40.0000.03010.93
5.2.30.0070.02310.95
5.2.20.0030.02710.78
5.2.10.0070.02310.80
5.2.00.0000.03010.66
5.1.60.0030.02310.04
5.1.50.0030.02010.03
5.1.40.0070.0209.90
5.1.30.0000.02710.53
5.1.20.0030.02710.29
5.1.10.0000.0509.98
5.1.00.0000.04710.11
5.0.50.0030.0379.00
5.0.40.0070.0439.00
5.0.30.0030.0639.00
5.0.20.0030.0379.00
5.0.10.0000.0509.00
5.0.00.0030.0479.00
4.4.90.0000.0179.00
4.4.80.0000.0139.00
4.4.70.0000.0179.00
4.4.60.0030.0179.00
4.4.50.0000.0139.00
4.4.40.0000.0239.00
4.4.30.0030.0179.00
4.4.20.0000.0179.00
4.4.10.0030.0339.00
4.4.00.0000.0609.00
4.3.110.0100.0179.00
4.3.100.0000.0179.00
4.3.90.0000.0379.00
4.3.80.0000.0439.00
4.3.70.0030.0339.00
4.3.60.0000.0209.00
4.3.50.0000.0279.00
4.3.40.0000.0339.00
4.3.30.0000.0179.00
4.3.20.0030.0339.00
4.3.10.0000.0179.00
4.3.00.0030.0309.00

preferences:
38.71 ms | 400 KiB | 5 Q