3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(strlen('…')); var_dump(json_encode('...')); var_dump(strlen(json_encode('...'))); var_dump(json_encode('…')); var_dump(strlen(json_encode('…')));

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)
8.3.60.0170.00318.39
8.3.50.0150.00521.93
8.3.40.0110.01118.86
8.3.30.0150.00018.73
8.3.20.0060.00620.25
8.3.10.0000.00823.70
8.3.00.0120.00619.07
8.2.180.0110.00416.50
8.2.170.0170.00022.96
8.2.160.0100.00721.99
8.2.150.0060.00324.18
8.2.140.0080.00024.66
8.2.130.0020.00526.16
8.2.120.0000.00820.94
8.2.110.0060.00320.38
8.2.100.0110.00017.66
8.2.90.0000.00817.91
8.2.80.0030.00617.97
8.2.70.0090.00017.62
8.2.60.0050.00318.00
8.2.50.0090.00018.10
8.2.40.0040.00419.21
8.2.30.0000.00818.98
8.2.20.0040.00417.64
8.2.10.0040.00417.93
8.2.00.0040.00417.65
8.1.280.0040.01125.92
8.1.270.0070.01018.73
8.1.260.0050.00326.35
8.1.250.0050.00228.09
8.1.240.0090.00023.93
8.1.230.0030.00822.71
8.1.220.0080.00017.74
8.1.210.0080.00018.86
8.1.200.0060.00317.22
8.1.190.0040.00417.23
8.1.180.0030.00518.10
8.1.170.0000.00818.34
8.1.160.0000.00818.81
8.1.150.0040.00418.65
8.1.140.0050.00217.30
8.1.130.0070.00017.66
8.1.120.0000.00717.23
8.1.110.0050.00217.31
8.1.100.0000.00817.28
8.1.90.0040.00417.30
8.1.80.0000.00717.22
8.1.70.0030.00317.23
8.1.60.0000.00817.46
8.1.50.0050.00317.26
8.1.40.0000.00817.37
8.1.30.0000.00817.51
8.1.20.0040.00417.52
8.1.10.0040.00417.46
8.1.00.0000.00717.34
8.0.300.0000.00821.74
8.0.290.0070.00016.58
8.0.280.0000.00718.22
8.0.270.0050.00217.03
8.0.260.0020.00517.07
8.0.250.0040.00416.77
8.0.240.0000.00616.70
8.0.230.0000.00816.80
8.0.220.0000.00716.74
8.0.210.0000.00716.73
8.0.200.0000.00616.82
8.0.190.0080.00016.70
8.0.180.0050.00316.71
8.0.170.0040.00416.69
8.0.160.0030.00316.78
8.0.150.0030.00316.72
8.0.140.0000.00716.71
8.0.130.0000.00513.17
8.0.120.0060.00316.71
8.0.110.0040.00416.77
8.0.100.0020.00516.81
8.0.90.0080.00016.63
8.0.80.0090.00616.65
8.0.70.0000.00816.66
8.0.60.0070.00016.57
8.0.50.0000.00716.65
8.0.30.0050.01316.93
8.0.20.0110.01317.40
8.0.10.0040.00416.67
8.0.00.0090.00916.56
7.4.330.0030.00315.03
7.4.320.0000.00716.38
7.4.300.0000.00616.44
7.4.290.0030.00316.49
7.4.280.0030.00316.48
7.4.270.0000.00816.26
7.4.260.0000.00716.36
7.4.250.0000.00816.41
7.4.240.0050.00216.39
7.4.230.0000.00716.43
7.4.220.0120.00916.52
7.4.210.0100.01016.36
7.4.200.0070.00016.25
7.4.160.0090.00616.46
7.4.150.0060.01217.40
7.4.140.0130.00717.86
7.4.130.0090.00816.43
7.4.120.0120.00516.27
7.4.110.0100.01216.30
7.4.100.0120.00616.58
7.4.90.0040.01316.23
7.4.80.0150.00919.39
7.4.70.0110.00716.40
7.4.60.0060.01016.21
7.4.50.0040.00416.31
7.4.40.0060.00916.21
7.4.30.0090.01016.15
7.4.00.0070.01014.92
7.3.330.0000.00512.96
7.3.320.0030.00312.89
7.3.310.0070.00015.95
7.3.300.0000.00716.02
7.3.290.0110.00416.17
7.3.280.0080.00916.13
7.3.270.0160.00917.40
7.3.260.0170.00616.25
7.3.250.0110.00716.26
7.3.240.0180.00316.43
7.3.230.0120.00616.46
7.3.210.0040.01316.41
7.3.200.0090.01619.39
7.3.190.0030.01416.09
7.3.180.0060.01016.14
7.3.170.0140.00416.51
7.3.160.0060.01016.14
7.3.00.0120.00316.26
7.2.330.0110.00716.64
7.2.320.0090.00916.45
7.2.310.0150.00716.32
7.2.300.0130.00316.31
7.2.290.0120.01216.48
7.2.130.0030.01416.78
7.2.120.0030.01016.54
7.2.110.0070.00716.34
7.2.100.0040.01216.54
7.2.90.0080.00416.55
7.2.80.0120.00816.68
7.2.70.0060.00616.43
7.2.60.0130.00316.70
7.2.50.0000.01516.37
7.2.40.0070.01016.57
7.2.30.0040.00816.57
7.2.20.0070.00716.63
7.2.10.0060.00616.73
7.2.00.0060.00317.85
7.1.250.0040.00415.61
7.1.240.0090.00315.69
7.1.230.0120.00315.52
7.1.220.0110.00415.69
7.1.210.0110.00015.53
7.1.200.0160.00715.48
7.1.190.0000.02515.82
7.1.180.0060.00615.71
7.1.170.0040.00715.63
7.1.160.0030.01015.84
7.1.150.0000.01115.34
7.1.140.0070.00715.45
7.1.130.0060.00915.41
7.1.120.0000.01615.54
7.1.110.0030.01015.81
7.1.100.0450.00615.76
7.1.90.0040.01115.62
7.1.80.0030.01215.65
7.1.70.0070.00416.34
7.1.60.0080.00316.20
7.1.50.0050.00715.99
7.1.40.0000.01015.72
7.1.30.0040.00715.61
7.1.20.0030.01315.37
7.1.10.0040.00715.48
7.1.00.0070.03919.04
7.0.330.0030.01015.25
7.0.320.0000.01315.19
7.0.310.0280.00215.38
7.0.300.0150.00615.11
7.0.290.0060.00915.17
7.0.280.0030.00715.16
7.0.270.0060.00915.11
7.0.260.0040.00415.39
7.0.250.0030.01015.17
7.0.240.0030.01015.30
7.0.230.0070.01015.05
7.0.220.0040.00415.28
7.0.210.0040.00415.21
7.0.200.0030.01215.85
7.0.190.0030.00515.30
7.0.180.0030.00715.15
7.0.170.0030.01015.02
7.0.160.0070.00715.03
7.0.150.0070.00315.07
7.0.140.0030.02718.63
7.0.130.0030.01014.84
7.0.120.0060.00915.04
7.0.110.0040.00815.20
7.0.100.0120.00315.08
7.0.90.0280.04517.58
7.0.80.0320.04117.60
7.0.70.0310.04117.58
7.0.60.0320.03917.66
7.0.50.0320.04517.73
7.0.40.0070.04216.74
7.0.30.0080.02716.55
7.0.20.0080.04116.65
7.0.10.0110.04216.71
7.0.00.0100.02116.58
5.6.380.0070.00713.88
5.6.370.0100.00313.80
5.6.360.0080.00414.46
5.6.350.0060.00313.79
5.6.340.0070.00713.76
5.6.330.0060.00914.22
5.6.320.0030.01014.21
5.6.310.0030.01013.64
5.6.300.0000.00913.89
5.6.290.0000.01214.03
5.6.280.0100.03517.72
5.6.270.0060.00614.04
5.6.260.0090.00314.13
5.6.250.0070.00713.72
5.6.240.0040.02417.21
5.6.230.0080.04617.19
5.6.220.0080.02517.17
5.6.210.0030.03017.21
5.6.200.0050.04617.41
5.6.190.0060.03617.42
5.6.180.0050.04317.60
5.6.170.0020.03217.52
5.6.160.0030.04517.60
5.6.150.0070.03917.54
5.6.140.0050.03517.65
5.6.130.0050.04017.46
5.6.120.0080.02717.53
5.6.110.0100.02217.31
5.6.100.0000.02917.44
5.6.90.0050.02417.40
5.6.80.0050.02517.15
5.6.70.0050.02917.14
5.6.60.0070.03017.09
5.6.50.0050.02717.10
5.6.40.0100.02117.18
5.6.30.0120.02817.05
5.6.20.0030.02517.04
5.6.10.0100.02017.17
5.6.00.0120.02017.10
5.5.380.0040.02515.58
5.5.370.0080.04215.48
5.5.360.0050.03715.63
5.5.350.0050.02715.42
5.5.340.0080.02515.56
5.5.330.0080.04515.84
5.5.320.0070.04415.74
5.5.310.0080.04715.77
5.5.300.0070.04115.74
5.5.290.0100.03715.78
5.5.280.0050.03415.86
5.5.270.0080.04515.84
5.5.260.0050.02515.70
5.5.250.0060.03715.46
5.5.240.0050.02215.42
5.5.230.0110.01815.50
5.5.220.0090.04415.37
5.5.210.0060.02515.48
5.5.200.0020.02315.39
5.5.190.0090.02015.56
5.5.180.0050.02315.18
5.5.170.0110.00410.68
5.5.160.0030.02015.40
5.5.150.0000.02515.45
5.5.140.0080.02015.36
5.5.130.0030.02515.46
5.5.120.0070.02215.33
5.5.110.0040.03215.42
5.5.100.0020.02515.35
5.5.90.0040.02915.37
5.5.80.0050.02015.37
5.5.70.0020.02515.19
5.5.60.0060.01815.26
5.5.50.0060.02215.33
5.5.40.0050.03315.25
5.5.30.0030.02415.31
5.5.20.0020.02515.26
5.5.10.0030.02315.37
5.5.00.0040.02415.15
5.4.450.0060.04315.20
5.4.440.0030.02314.85
5.4.430.0130.01815.06
5.4.420.0060.03015.02
5.4.410.0050.02214.71
5.4.400.0030.02514.89
5.4.390.0070.02314.65
5.4.380.0060.02114.78
5.4.370.0050.02514.84
5.4.360.0060.02114.82
5.4.350.0020.02514.76
5.4.340.0110.02014.76
5.4.330.0000.01010.53
5.4.320.0020.02214.74
5.4.310.0070.01814.51
5.4.300.0050.02114.88
5.4.290.0020.02114.78
5.4.280.0090.02014.70
5.4.270.0030.02214.88
5.4.260.0070.02314.80
5.4.250.0050.02214.61
5.4.240.0050.02014.76
5.4.230.0050.02214.77
5.4.220.0050.02214.65
5.4.210.0040.02114.63
5.4.200.0030.02014.96
5.4.190.0020.02414.75
5.4.180.0000.02614.90
5.4.170.0090.02214.88
5.4.160.0080.01514.79
5.4.150.0030.02014.74
5.4.140.0050.02013.45
5.4.130.0020.02513.50
5.4.120.0060.03613.46
5.4.110.0050.02613.45
5.4.100.0100.03713.34
5.4.90.0070.03713.50
5.4.80.0040.02513.52
5.4.70.0100.03313.39
5.4.60.0080.03713.46
5.4.50.0080.02813.35
5.4.40.0030.03813.59
5.4.30.0190.03213.45
5.4.20.0070.03813.50
5.4.10.0050.03013.43
5.4.00.0080.04013.05
5.3.290.0060.01912.41
5.3.280.0020.02312.42
5.3.270.0030.02312.39
5.3.260.0050.02112.46
5.3.250.0060.02412.45
5.3.240.0030.01812.38
5.3.230.0040.02012.39
5.3.220.0030.02612.36
5.3.210.0020.02612.39
5.3.200.0100.01812.37
5.3.190.0060.03912.29
5.3.180.0060.04312.47
5.3.170.0130.03512.54
5.3.160.0080.02812.47
5.3.150.0080.03812.44
5.3.140.0070.03512.50
5.3.130.0050.03212.45
5.3.120.0150.02312.25
5.3.110.0050.04212.40
5.3.100.0090.04012.07
5.3.90.0080.03012.17
5.3.80.0050.03312.05
5.3.70.0090.02512.09
5.3.60.0060.04112.12
5.3.50.0070.03912.05
5.3.40.0070.03712.05
5.3.30.0060.03712.04
5.3.20.0070.02211.99
5.3.10.0070.03611.69
5.3.00.0070.02811.78
5.2.170.0050.03410.58
5.2.160.0030.03510.45
5.2.150.0060.03110.47
5.2.140.0040.02510.46
5.2.130.0090.02810.53
5.2.120.0050.02310.53
5.2.110.0060.02710.54
5.2.100.0110.02710.50
5.2.90.0070.03210.45
5.2.80.0080.03010.52
5.2.70.0030.03710.56
5.2.60.0080.03010.46
5.2.50.0090.02910.48
5.2.40.0080.03010.37
5.2.30.0050.02410.36
5.2.20.0050.02110.43
5.2.10.0100.03210.44
5.2.00.0050.03310.37
5.1.60.0030.02810.00
5.1.50.0050.02110.00
5.1.40.0050.03110.00
5.1.30.0080.02810.18
5.1.20.0070.02710.17
5.1.10.0100.01810.01
5.1.00.0090.02510.05
5.0.50.0050.0259.24
5.0.40.0050.0239.20
5.0.30.0060.0389.13
5.0.20.0110.0229.00
5.0.10.0100.0209.06
5.0.00.0090.0239.10
4.4.90.0030.0208.65
4.4.80.0050.0188.65
4.4.70.0000.0148.65
4.4.60.0000.0118.65
4.4.50.0030.0208.65
4.4.40.0020.0298.65
4.4.30.0020.0238.65
4.4.20.0030.0178.65
4.4.10.0010.0148.65
4.4.00.0130.0208.65
4.3.110.0030.0208.65
4.3.100.0070.0178.65
4.3.90.0120.0158.65
4.3.80.0040.0288.65
4.3.70.0060.0178.65
4.3.60.0030.0208.65
4.3.50.0070.0178.65
4.3.40.0030.0278.65
4.3.30.0050.0188.65
4.3.20.0030.0158.65
4.3.10.0020.0128.65
4.3.00.0070.0088.65

preferences:
53.91 ms | 401 KiB | 5 Q