3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(is_string(null));

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)
8.3.40.0080.00818.60
8.3.30.0000.01419.02
8.3.20.0080.00020.16
8.3.10.0080.00020.45
8.3.00.0080.00019.25
8.2.170.0100.01022.96
8.2.160.0140.00020.16
8.2.150.0020.00524.18
8.2.140.0000.00824.66
8.2.130.0040.00426.16
8.2.120.0050.00320.98
8.2.110.0030.00620.52
8.2.100.0090.00318.03
8.2.90.0040.00419.07
8.2.80.0050.00317.97
8.2.70.0030.00517.63
8.2.60.0000.00917.80
8.2.50.0080.00018.07
8.2.40.0000.01217.99
8.2.30.0000.00719.24
8.2.20.0060.00317.54
8.2.10.0000.00717.80
8.2.00.0030.00517.65
8.1.270.0000.00823.88
8.1.260.0040.00426.35
8.1.250.0030.00528.09
8.1.240.0080.00023.79
8.1.230.0110.00019.01
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0090.00017.10
8.1.190.0000.00816.88
8.1.180.0040.00418.10
8.1.170.0080.00018.36
8.1.160.0000.00721.81
8.1.150.0000.00718.66
8.1.140.0000.00817.22
8.1.130.0040.00417.21
8.1.120.0000.00817.26
8.1.110.0000.00817.20
8.1.100.0050.00217.26
8.1.90.0000.00817.29
8.1.80.0070.00017.27
8.1.70.0030.00317.18
8.1.60.0000.00817.32
8.1.50.0000.00817.26
8.1.40.0000.00817.23
8.1.30.0080.00017.51
8.1.20.0000.00717.49
8.1.10.0060.00317.23
8.1.00.0060.00317.36
8.0.300.0070.00018.77
8.0.290.0050.00316.58
8.0.280.0030.00318.35
8.0.270.0000.00817.12
8.0.260.0040.00416.74
8.0.250.0000.00616.71
8.0.240.0030.00316.92
8.0.230.0000.00716.86
8.0.220.0060.00316.78
8.0.210.0080.00016.82
8.0.200.0030.00316.87
8.0.190.0040.00416.91
8.0.180.0040.00416.86
8.0.170.0080.00016.82
8.0.160.0030.00316.79
8.0.150.0030.00316.77
8.0.140.0030.00716.75
8.0.130.0000.00513.26
8.0.120.0040.00416.78
8.0.110.0080.00016.75
8.0.100.0040.00416.73
8.0.90.0070.00016.83
8.0.80.0070.01016.86
8.0.70.0040.00416.68
8.0.60.0080.00016.93
8.0.50.0030.00516.59
8.0.30.0190.00716.75
8.0.20.0140.00917.08
8.0.10.0160.01316.88
8.0.00.0130.01116.72
7.4.330.0000.00515.00
7.4.320.0000.00716.36
7.4.300.0000.00616.45
7.4.290.0000.00716.46
7.4.280.0050.00316.33
7.4.270.0030.00316.38
7.4.260.0000.00613.09
7.4.250.0000.00716.28
7.4.240.0040.00316.46
7.4.230.0030.00316.46
7.4.220.0030.01416.42
7.4.210.0130.00716.45
7.4.200.0050.00216.36
7.4.160.0150.01116.41
7.4.150.0150.00816.57
7.4.140.0160.00916.98
7.4.130.0160.00716.27
7.4.120.0100.01216.21
7.4.110.0140.01216.20
7.4.100.0160.01016.24
7.4.90.0150.01016.26
7.4.80.0180.00817.22
7.4.70.0160.00916.27
7.4.60.0170.00816.18
7.4.50.0130.00916.21
7.4.40.0190.00616.26
7.4.30.0170.01016.10
7.4.20.0250.00316.06
7.4.10.0230.00816.24
7.4.00.0150.00815.79
7.3.330.0030.00313.09
7.3.320.0030.00313.11
7.3.310.0030.00316.05
7.3.300.0030.00316.02
7.3.290.0000.01316.25
7.3.280.0140.00916.14
7.3.270.0170.00716.54
7.3.260.0220.00416.27
7.3.250.0160.00716.10
7.3.240.0170.01016.17
7.3.230.0160.01116.17
7.3.220.0210.01216.01
7.3.210.0190.00916.13
7.3.200.0170.00717.13
7.3.190.0160.01116.12
7.3.180.0200.00616.07
7.3.170.0170.01016.13
7.3.160.0150.01116.09
7.3.150.0200.00915.98
7.3.140.0210.00716.02
7.3.130.0190.00816.12
7.3.120.0200.00616.06
7.3.110.0210.01115.95
7.3.100.0220.00615.92
7.3.90.0180.01416.32
7.3.80.0220.00716.04
7.3.70.0180.00816.04
7.3.60.0240.00716.17
7.3.50.0210.01316.19
7.3.40.0130.01516.13
7.3.30.0190.01316.09
7.3.20.0220.00716.18
7.3.10.0170.00916.15
7.3.00.0130.00916.24
7.2.340.0200.00716.10
7.2.330.0140.00916.25
7.2.320.0170.00816.25
7.2.310.0130.01216.18
7.2.300.0160.00716.23
7.2.290.0170.00816.18
7.2.280.0200.00816.14
7.2.270.0190.00916.11
7.2.260.0160.01116.13
7.2.250.0190.00816.12
7.2.240.0150.01116.13
7.2.230.0210.00816.08
7.2.220.0150.01116.07
7.2.210.0200.00916.09
7.2.200.0220.00616.27
7.2.190.0250.00616.27
7.2.180.0200.00716.21
7.2.170.0180.01216.29
7.2.160.0210.01016.33
7.2.150.0170.01316.23
7.2.140.0250.00816.32
7.2.130.0130.00816.50
7.2.120.0090.01116.42
7.2.110.0110.01016.50
7.2.100.0140.00616.50
7.2.90.0160.00716.54
7.2.80.0130.00916.39
7.2.70.0170.00416.44
7.2.60.0090.01316.44
7.2.50.0110.00916.50
7.2.40.0170.00416.41
7.2.30.0140.00816.62
7.2.20.0150.00616.59
7.2.10.0150.00816.53
7.2.00.0130.00717.14
7.1.330.0160.01015.30
7.1.320.0140.01015.31
7.1.310.0210.00515.23
7.1.300.0160.00715.37
7.1.290.0220.00715.31
7.1.280.0170.00615.34
7.1.270.0150.00715.32
7.1.260.0210.00515.28
7.1.250.0130.00715.44
7.1.240.0180.00715.29
7.1.230.0210.00415.32
7.1.220.0180.01015.35
7.1.210.0180.00715.31
7.1.200.0200.00915.47
7.1.190.0170.01015.26
7.1.180.0170.01015.29
7.1.170.0180.00915.24
7.1.160.0190.00915.22
7.1.150.0190.00815.23
7.1.140.0210.00915.24
7.1.130.0180.00815.27
7.1.120.0190.01115.22
7.1.110.0190.00815.22
7.1.100.0160.00616.11
7.1.90.0220.00615.16
7.1.80.0200.00315.22
7.1.70.0130.00615.79
7.1.60.0140.00515.76
7.1.50.0130.01015.68
7.1.40.0150.00915.26
7.1.30.0160.00615.28
7.1.20.0170.00915.24
7.1.10.0280.00415.19
7.1.00.0150.02817.59
7.0.330.0190.00414.97
7.0.320.0160.00614.87
7.0.310.0170.00514.99
7.0.300.0150.00814.94
7.0.290.0210.00514.93
7.0.280.0150.01114.88
7.0.270.0150.01114.90
7.0.260.0180.00614.90
7.0.250.0190.00315.07
7.0.240.0170.00815.13
7.0.230.0250.00615.09
7.0.220.0160.00915.00
7.0.210.0170.00715.08
7.0.200.0110.01015.56
7.0.190.0140.00815.03
7.0.180.0160.00715.07
7.0.170.0170.00615.19
7.0.160.0160.00814.98
7.0.150.0160.01014.94
7.0.140.0090.03217.32
7.0.130.0090.01315.09
7.0.120.0160.00814.99
7.0.110.0150.01015.01
7.0.100.0160.00715.03
7.0.90.0160.00914.96
7.0.80.0170.00614.94
7.0.70.0130.00914.95
7.0.60.0100.02016.60
7.0.50.0180.02615.89
7.0.40.0080.02316.75
7.0.30.0290.02016.69
7.0.20.0250.02916.65
7.0.10.0110.03516.68
7.0.00.0160.02416.77
5.6.400.0240.00415.53
5.6.390.0160.00815.48
5.6.380.0180.00915.59
5.6.370.0180.00815.56
5.6.360.0180.00515.47
5.6.350.0170.00615.48
5.6.340.0210.00315.54
5.6.330.0160.00815.47
5.6.320.0180.00815.54
5.6.310.0180.01015.50
5.6.300.0170.01115.31
5.6.290.0170.00615.50
5.6.280.0140.00815.56
5.6.270.0100.01315.47
5.6.260.0120.01015.57
5.6.250.0170.00815.53
5.6.240.0210.00515.56
5.6.230.0140.01215.62
5.6.220.0150.01115.65
5.6.210.0170.02717.28
5.6.200.0140.01916.52
5.6.190.0150.03717.27
5.6.180.0240.02017.23
5.6.170.0210.03017.18
5.6.160.0180.03017.22
5.6.150.0150.01716.52
5.6.140.0130.03016.44
5.6.130.0120.02016.42
5.6.120.0150.02117.33
5.6.110.0130.03417.30
5.6.100.0160.03017.36
5.6.90.0140.03217.36
5.6.80.0230.02217.15
5.6.70.0180.01015.66
5.6.60.0210.00715.63
5.6.50.0200.00415.44
5.6.40.0140.00815.45
5.6.30.0180.00615.48
5.6.20.0200.00515.41
5.6.10.0160.00715.50
5.6.00.0190.00615.47
5.5.380.0120.01215.65
5.5.370.0150.01115.59
5.5.360.0180.00715.44
5.5.350.0190.02517.12
5.5.340.0120.02316.32
5.5.330.0130.03517.01
5.5.320.0180.02017.04
5.5.310.0190.03217.04
5.5.300.0140.02816.22
5.5.290.0170.03216.23
5.5.280.0140.02617.24
5.5.270.0100.02317.21
5.5.260.0120.03517.20
5.5.250.0160.01617.31
5.5.240.0100.03417.17
5.5.230.0120.01215.51
5.5.220.0070.01315.46
5.5.210.0140.00915.52
5.5.200.0170.00715.36
5.5.190.0170.00715.40
5.5.180.0160.00715.41
5.5.170.0130.01015.29
5.5.160.0180.00715.35
5.5.150.0110.01315.25
5.5.140.0120.01215.20
5.5.130.0190.00815.23
5.5.120.0150.00715.34
5.5.110.0160.00615.18
5.5.100.0170.00715.45
5.5.90.0140.00715.54
5.5.80.0140.00615.48
5.5.70.0180.00515.41
5.5.60.0180.00815.51
5.5.50.0160.01015.45
5.5.40.0180.00715.51
5.5.30.0180.00315.48
5.5.20.0180.00415.56
5.5.10.0130.00815.44
5.5.00.0190.00315.37
5.4.450.0180.01714.77
5.4.440.0200.02114.74
5.4.430.0250.01514.75
5.4.420.0160.01714.74
5.4.410.0170.01814.63
5.4.400.0190.01614.60
5.4.390.0180.01914.60
5.4.380.0190.02414.39
5.4.370.0160.02314.48
5.4.360.0140.02414.42
5.4.350.0150.02314.40
5.4.340.0120.02314.47
5.4.330.0110.00712.32
5.4.320.0110.01712.41
5.4.310.0120.01812.42
5.4.300.0120.01712.43
5.4.290.0130.02012.40
5.4.280.0090.02112.40
5.4.270.0100.02212.35
5.4.260.0110.01712.33
5.4.250.0110.02012.36
5.4.240.0120.01912.34
5.4.230.0140.01512.23
5.4.220.0100.01912.22
5.4.210.0160.01612.21
5.4.200.0080.01912.21
5.4.190.0110.01612.24
5.4.180.0080.01812.22
5.4.170.0110.01512.25
5.4.160.0080.01812.27
5.4.150.0100.01512.25
5.4.140.0100.01712.20
5.4.130.0100.01512.27
5.4.120.0080.01712.25
5.4.110.0100.01512.19
5.4.100.0120.01612.22
5.4.90.0100.01612.23
5.4.80.0120.01512.22
5.4.70.0100.01912.28
5.4.60.0090.01912.24
5.4.50.0100.01712.20
5.4.40.0090.01712.19
5.4.30.0140.01712.22
5.4.20.0120.01612.25
5.4.10.0110.01512.28
5.4.00.0110.01512.01

preferences:
44.71 ms | 400 KiB | 5 Q