3v4l.org

run code in 500+ PHP versions simultaneously
<?php echo("null == 0 is " . ((null == 0) ? 'true' : 'false') . "\n"); echo("null === 0 is " . ((null === 0) ? 'true' : 'false') . "\n"); echo("false == 0 is " . ((false == 0) ? 'true' : 'false') . "\n"); echo("false === 0 is " . ((false === 0) ? 'true' : 'false') . "\n"); echo("null == false is " . ((null == false) ? 'true' : 'false') . "\n"); echo("null === false is " . ((null === false) ? 'true' : 'false') . "\n"); echo("null < -1 is " . ((null < -1) ? 'true' : 'false') . "\n");

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)
8.5.70.0100.00716.90
8.5.60.0120.00616.93
8.5.50.0090.00818.52
8.5.30.0100.00817.36
8.5.20.0140.00420.25
8.5.10.0090.00916.75
8.5.00.0140.00720.07
8.4.220.0140.00819.55
8.4.210.0100.01319.55
8.4.180.0130.00921.49
8.4.170.0140.01021.93
8.4.160.0100.01122.02
8.4.150.0080.00516.90
8.4.140.0170.00417.42
8.4.130.0140.00517.99
8.4.120.0050.00320.68
8.4.110.0120.00818.09
8.4.100.0140.00717.72
8.4.90.0130.00817.74
8.4.80.0120.00818.03
8.4.70.0170.00419.28
8.4.60.0110.01117.70
8.4.50.0140.00618.47
8.4.40.0000.00817.88
8.4.30.0000.01920.28
8.4.20.0130.00817.66
8.4.10.0120.00622.54
8.3.310.0070.00418.35
8.3.300.0110.00918.44
8.3.290.0100.01020.85
8.3.280.0120.01018.57
8.3.270.0120.00816.77
8.3.260.0110.00916.52
8.3.250.0120.00718.84
8.3.240.0110.00816.50
8.3.230.0150.00516.77
8.3.220.0120.00617.20
8.3.210.0120.00716.54
8.3.200.0100.00916.55
8.3.190.0090.00916.64
8.3.180.0100.00818.55
8.3.170.0120.00318.77
8.3.160.0110.00720.41
8.3.150.0150.00018.91
8.3.140.0110.00016.69
8.3.130.0040.00416.43
8.3.120.0090.00018.89
8.3.110.0030.00620.94
8.3.100.0060.00324.06
8.3.90.0060.01026.77
8.3.80.0100.00019.36
8.3.70.0160.00316.63
8.3.60.0120.00318.43
8.3.50.0070.00524.44
8.3.40.0080.00819.08
8.3.30.0110.00718.67
8.3.20.0090.00024.18
8.3.10.0040.00424.66
8.3.00.0030.00726.16
8.2.310.0120.00818.10
8.2.300.0140.00622.08
8.2.290.0140.00420.38
8.2.280.0090.00918.15
8.2.270.0120.01218.75
8.2.260.0000.00816.48
8.2.250.0080.00016.70
8.2.240.0060.00916.82
8.2.230.0050.00322.58
8.2.220.0200.00037.54
8.2.210.0030.00626.77
8.2.200.0060.00318.88
8.2.190.0160.00616.58
8.2.180.0120.00625.92
8.2.170.0070.00722.96
8.2.160.0100.00622.96
8.2.150.0040.00425.66
8.2.140.0040.00424.66
8.2.130.0000.00826.16
8.2.120.0060.00319.24
8.2.110.0080.00422.25
8.2.100.0080.00417.91
8.2.90.0030.00517.75
8.2.80.0000.00818.66
8.2.70.0050.00317.67
8.2.60.0030.00518.09
8.2.50.0040.00419.42
8.2.40.0000.00719.26
8.2.30.0040.00419.21
8.2.20.0000.00818.01
8.2.10.0000.00820.97
8.2.00.0040.00419.29
8.1.340.0170.01019.47
8.1.330.0110.00916.53
8.1.320.0110.00915.94
8.1.310.0050.00318.41
8.1.300.0040.01518.20
8.1.290.0030.00630.84
8.1.280.0140.00025.92
8.1.270.0040.00423.99
8.1.260.0060.00326.35
8.1.250.0040.00428.09
8.1.240.0090.00322.02
8.1.230.0090.00322.77
8.1.220.0070.00017.74
8.1.210.0040.00418.77
8.1.200.0090.00017.25
8.1.190.0040.00417.23
8.1.180.0070.00018.85
8.1.170.0030.00618.36
8.1.160.0050.00318.95
8.1.150.0040.00418.88
8.1.140.0000.00818.82
8.1.130.0030.00320.14
8.1.120.0000.00717.33
8.1.110.0030.00517.40
8.1.100.0000.00717.40
8.1.90.0090.00017.26
8.1.80.0000.00817.29
8.1.70.0030.00317.30
8.1.60.0040.00417.49
8.1.50.0060.00317.36
8.1.40.0110.00017.29
8.1.30.0040.00417.52
8.1.20.0000.00817.52
8.1.10.0060.00617.33
8.1.00.0030.00917.36
8.0.300.0000.00718.99
8.0.290.0040.00416.75
8.0.280.0000.00718.36
8.0.270.0030.00316.87
8.0.260.0060.00018.30
8.0.250.0030.00316.96
8.0.240.0000.00716.82
8.0.230.0000.00816.93
8.0.220.0110.00016.86
8.0.210.0040.00416.90
8.0.200.0050.00316.80
8.0.190.0030.00416.84
8.0.180.0040.00416.81
8.0.170.0080.00016.88
8.0.160.0000.00816.96
8.0.150.0030.00516.87
8.0.140.0040.00416.87
8.0.130.0030.00313.29
8.0.120.0030.00516.78
8.0.110.0000.00716.74
8.0.100.0040.00416.93
8.0.90.0000.00916.78
8.0.80.0080.00716.93
8.0.70.0050.00316.88
8.0.60.0050.00316.74
8.0.50.0000.00716.67
8.0.30.0090.00917.00
8.0.20.0170.00217.08
8.0.10.0080.00016.96
8.0.00.0060.01316.65
7.4.330.0050.00015.55
7.4.320.0000.00616.36
7.4.300.0070.00016.51
7.4.290.0000.00716.35
7.4.280.0000.00816.37
7.4.270.0000.00816.36
7.4.260.0060.00013.16
7.4.250.0000.00716.45
7.4.240.0040.00316.35
7.4.230.0000.00816.42
7.4.220.0030.00316.41
7.4.210.0040.01116.46
7.4.200.0030.00316.56
7.4.130.0060.01216.51
7.4.120.0070.01816.58
7.4.110.0090.00916.39
7.4.100.0130.00316.18
7.4.90.0080.00916.21
7.4.80.0030.01617.88
7.4.70.0110.00716.40
7.4.60.0070.01116.26
7.4.50.0100.00716.29
7.4.40.0030.01316.30
7.4.30.0110.00616.30
7.4.20.0090.00816.29
7.4.10.0090.00916.32
7.4.00.0110.00716.42
7.3.330.0000.00716.09
7.3.320.0000.00613.13
7.3.310.0000.00716.25
7.3.300.0060.00016.29
7.3.290.0080.00816.21
7.3.280.0140.00516.28
7.3.260.0060.01516.39
7.3.240.0100.00716.25
7.3.230.0000.01616.21
7.3.210.0080.00916.11
7.3.200.0050.01316.36
7.3.190.0090.00916.52
7.3.180.0100.00616.18
7.3.170.0120.00616.22
7.3.160.0080.00816.34
7.3.150.0090.00816.40
7.3.140.0110.00616.28
7.3.130.0070.00916.14
7.3.120.0120.00716.33
7.3.110.0130.00316.21
7.3.100.0090.00916.32
7.3.90.0060.01416.24
7.3.80.0080.01016.13
7.3.70.0070.01116.26
7.3.60.0120.00616.25
7.3.50.0090.00816.24
7.3.40.0090.00916.09
7.3.30.0100.00616.36
7.3.20.0100.00717.29
7.3.10.0130.00517.15
7.3.00.0110.00817.12
7.2.330.0080.01016.43
7.2.320.0110.00916.47
7.2.310.0090.01116.42
7.2.300.0130.00516.42
7.2.290.0100.00816.26
7.2.280.0140.00416.34
7.2.270.0120.00616.63
7.2.260.0080.01016.41
7.2.250.0100.00816.67
7.2.240.0090.00916.53
7.2.230.0120.00816.56
7.2.220.0110.00916.59
7.2.210.0090.00916.35
7.2.200.0150.00416.46
7.2.190.0090.00716.45
7.2.180.0040.01416.44
7.2.170.0080.01016.51
7.2.160.0100.00616.48
7.2.150.0110.00717.43
7.2.140.0270.01117.40
7.2.130.0060.01217.42
7.2.120.0080.01117.27
7.2.110.0140.00817.25
7.2.100.0130.00517.25
7.2.90.0090.01317.39
7.2.80.0130.00817.42
7.2.70.0120.01117.43
7.2.60.0080.01117.36
7.2.50.0170.00617.38
7.2.40.0230.00917.41
7.2.30.0140.00417.43
7.2.20.0140.00617.41
7.2.10.0130.00717.43
7.2.00.0070.01117.31
7.1.330.0220.00616.30
7.1.320.0230.00616.38
7.1.310.0190.01016.37
7.1.300.0220.00716.28
7.1.290.0240.00416.26
7.1.280.0220.00516.40
7.1.270.0170.01116.35
7.1.260.0230.00416.29
7.1.250.0190.00916.31
7.1.240.0150.01516.30
7.1.230.0200.01016.24
7.1.220.0230.00616.23
7.1.210.0220.00616.32
7.1.200.0210.01016.38
7.1.190.0230.00716.17
7.1.180.0210.01016.21
7.1.170.0160.01316.38
7.1.160.0210.00916.25
7.1.150.0200.00816.13
7.1.140.0180.00816.25
7.1.130.0180.00916.13
7.1.120.0220.01016.27
7.1.110.0220.00516.41
7.1.100.0200.01116.39
7.1.90.0330.00616.39
7.1.80.0190.00816.32
7.1.70.0200.00816.20
7.1.60.0200.00716.26
7.1.50.0200.00716.20
7.1.40.0210.00916.35
7.1.30.0220.00716.34
7.1.20.0310.00716.43
7.1.10.0180.00916.37
7.1.00.0210.01016.29
7.0.330.0180.00916.16
7.0.320.0200.01016.08
7.0.310.0170.01116.12
7.0.300.0260.00015.94
7.0.290.0170.01016.03
7.0.280.0220.00516.00
7.0.270.0230.00516.00
7.0.260.0180.01015.95
7.0.250.0210.00816.15
7.0.240.0190.00716.18
7.0.230.0190.00616.07
7.0.220.0170.00815.97
7.0.210.0180.00816.06
7.0.200.0150.01316.12
7.0.190.0150.01216.02
7.0.180.0200.00615.96
7.0.170.0190.00816.11
7.0.160.0190.00816.07
7.0.150.0190.00916.00
7.0.140.0180.00916.15
7.0.130.0180.00916.11
7.0.120.0260.00816.11
7.0.110.0210.00816.10
7.0.100.0210.01015.94
7.0.90.0270.00215.98
7.0.80.0190.00916.01
7.0.70.0200.00816.06
7.0.60.0240.00516.06
7.0.50.0240.00815.99
7.0.40.0170.01216.10
7.0.30.0250.00616.04
7.0.20.0220.00615.94
7.0.10.0170.01215.98
7.0.00.0160.01115.96
5.6.400.0180.01215.83
5.6.390.0210.00415.79
5.6.380.0160.01415.73
5.6.370.0160.01416.04
5.6.360.0160.01315.71
5.6.350.0200.01015.74
5.6.340.0220.00715.82
5.6.330.0180.01016.01
5.6.320.0200.01015.79
5.6.310.0220.00815.88
5.6.300.0150.01415.88
5.6.290.0180.01015.93
5.6.280.0150.01315.84
5.6.270.0250.00615.88
5.6.260.0190.01315.88
5.6.250.0160.01315.90
5.6.240.0210.01015.87
5.6.230.0210.01015.86
5.6.220.0230.01015.71
5.6.210.0270.00615.84
5.6.200.0210.01215.74
5.6.190.0180.01215.79
5.6.180.0200.01315.78
5.6.170.0190.01015.78
5.6.160.0240.00915.86
5.6.150.0230.00915.81
5.6.140.0200.01315.99
5.6.130.0280.00715.93
5.6.120.0180.01315.82
5.6.110.0220.01015.70
5.6.100.0210.01315.86
5.6.90.0200.01215.89
5.6.80.0160.01515.81
5.6.70.0200.01015.75
5.6.60.0190.01015.79
5.6.50.0230.01115.83
5.6.40.0250.00715.83
5.6.30.0190.01115.88
5.6.20.0190.01015.80
5.6.10.0120.01515.74
5.6.00.0150.01215.71
5.5.380.0240.00815.92
5.5.370.0200.01215.75
5.5.360.0230.00815.77
5.5.350.0210.01115.92
5.5.340.0230.01415.89
5.5.330.0200.01215.89
5.5.320.0210.01015.73
5.5.310.0170.01415.97
5.5.300.0290.00215.76
5.5.290.0190.01315.79
5.5.280.0170.01015.86
5.5.270.0300.00215.62
5.5.260.0270.00415.83
5.5.250.0180.01615.66
5.5.240.0210.01115.72
5.5.230.0230.01215.72
5.5.220.0140.01515.65
5.5.210.0230.00815.75
5.5.200.0220.01015.67
5.5.190.0250.00515.70
5.5.180.0180.01115.66
5.5.170.0190.01115.58
5.5.160.0220.01015.55
5.5.150.0220.01115.65
5.5.140.0160.01215.79
5.5.130.0170.01215.86
5.5.120.0140.01515.83
5.5.110.0170.01215.75
5.5.100.0160.01015.52
5.5.90.0200.00915.85
5.5.80.0100.01515.58
5.5.70.0130.01415.82
5.5.60.0190.01115.79
5.5.50.0150.01415.81
5.5.40.0180.01315.70
5.5.30.0240.00515.62
5.5.20.0200.01115.71
5.5.10.0240.00515.77
5.5.00.0200.01015.59
5.4.450.0180.00712.67
5.4.440.0140.00512.55
5.4.430.0160.01012.55
5.4.420.0170.00512.57
5.4.410.0230.00412.37
5.4.400.0160.01012.48
5.4.390.0170.00812.40
5.4.380.0180.00512.50
5.4.370.0180.00612.51
5.4.360.0190.00612.52
5.4.350.0170.00712.44
5.4.340.0170.00512.39
5.4.330.0160.00712.51
5.4.320.0230.00212.45
5.4.310.0150.00712.48
5.4.300.0170.00612.43
5.4.290.0130.01112.46
5.4.280.0150.00812.46
5.4.270.0160.00612.38
5.4.260.0170.00712.40
5.4.250.0210.00312.43
5.4.240.0120.00912.58
5.4.230.0180.00612.41
5.4.220.0230.00412.33
5.4.210.0130.01112.47
5.4.200.0190.00412.54
5.4.190.0150.00912.39
5.4.180.0130.01012.41
5.4.170.0190.00712.50
5.4.160.0160.00612.55
5.4.150.0150.00812.34
5.4.140.0190.00412.41
5.4.130.0190.00212.49
5.4.120.0150.00612.42
5.4.110.0160.00712.39
5.4.100.0120.01112.40
5.4.90.0170.00712.48
5.4.80.0160.00712.44
5.4.70.0120.01212.52
5.4.60.0160.00712.47
5.4.50.0140.00812.46
5.4.40.0130.00812.33
5.4.30.0100.01312.47
5.4.20.0140.00912.45
5.4.10.0190.00512.39
5.4.00.0190.00312.48
5.3.290.0190.00512.91
5.3.280.0160.00712.80
5.3.270.0150.01012.92
5.3.260.0160.00812.93
5.3.250.0210.00412.94
5.3.240.0170.00712.77
5.3.230.0110.01112.83
5.3.220.0170.00512.82
5.3.210.0170.00712.82
5.3.200.0220.00212.74
5.3.190.0120.01112.81
5.3.180.0150.01012.80
5.3.170.0180.00712.85
5.3.160.0150.00812.96
5.3.150.0130.00912.90
5.3.140.0120.01012.88
5.3.130.0170.00812.80
5.3.120.0160.01012.83
5.3.110.0130.01212.77
5.3.100.0130.01012.88
5.3.90.0180.00412.92
5.3.80.0190.00312.81
5.3.70.0080.01612.71
5.3.60.0160.00912.75
5.3.50.0140.00812.71
5.3.40.0180.00512.83
5.3.30.0170.00612.71
5.3.20.0140.00912.82
5.3.10.0130.00812.59
5.3.00.0110.01312.53
5.2.170.0120.00711.99
5.2.160.0110.01011.87
5.2.150.0180.00111.92
5.2.140.0110.00911.92
5.2.130.0070.01211.80
5.2.120.0100.00911.84
5.2.110.0140.00711.85
5.2.100.0130.00811.90
5.2.90.0110.01011.85
5.2.80.0120.00911.79
5.2.70.0140.00511.69
5.2.60.0070.01111.66
5.2.50.0130.00611.76
5.2.40.0100.01011.83
5.2.30.0130.00611.71
5.2.20.0100.01011.79
5.2.10.0140.01011.69
5.2.00.0110.01211.49
5.1.60.0110.00611.16
5.1.50.0100.00811.16
5.1.40.0080.01011.27
5.1.30.0150.00311.26
5.1.20.0140.00311.24
5.1.10.0150.00411.23
5.1.00.0100.00611.31
5.0.50.0100.00710.85
5.0.40.0100.00710.85
5.0.30.0120.00410.85
5.0.20.0100.00710.85
5.0.10.0110.00410.85
5.0.00.0060.00810.85
4.4.90.0050.00410.85
4.4.80.0060.00410.85
4.4.70.0070.00410.85
4.4.60.0070.00310.85
4.4.50.0030.00610.85
4.4.40.0040.00510.85
4.4.30.0030.00510.85
4.4.20.0050.00510.85
4.4.10.0090.00110.85
4.4.00.0090.00010.85
4.3.110.0050.00310.85
4.3.100.0040.00410.85
4.3.90.0060.00310.85
4.3.80.0080.00210.85
4.3.70.0080.00110.85
4.3.60.0060.00410.85
4.3.50.0060.00310.85
4.3.40.0070.00210.85
4.3.30.0060.00210.85
4.3.20.0040.00410.85
4.3.10.0080.00110.85
4.3.00.0060.00210.85

preferences:
59.7 ms | 2738 KiB | 5 Q