3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "\x34\x32\x2E"; echo $a; echo strlen($a); var_dump($a=="42"); $b = '\x34\x32\x2E'; echo $b; echo strlen($b); var_dump($b=="42"); echo urlencode($b);

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)
8.3.70.0030.01218.56
8.3.60.0030.01418.13
8.3.50.0130.00823.00
8.3.40.0120.00318.71
8.3.30.0100.00319.00
8.3.20.0030.00320.12
8.3.10.0040.00421.65
8.3.00.0000.00819.09
8.2.180.0060.00918.16
8.2.170.0110.00322.96
8.2.160.0100.00320.38
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0050.00320.85
8.2.110.0070.00421.04
8.2.100.0000.01217.91
8.2.90.0050.00317.97
8.2.80.0050.00317.97
8.2.70.0090.00317.93
8.2.60.0080.00018.16
8.2.50.0000.00918.03
8.2.40.0040.00418.05
8.2.30.0070.00318.34
8.2.20.0000.00717.55
8.2.10.0030.00517.93
8.2.00.0070.00017.72
8.1.280.0030.01325.92
8.1.270.0030.00622.18
8.1.260.0000.00726.35
8.1.250.0080.00028.09
8.1.240.0090.00021.00
8.1.230.0090.00322.70
8.1.220.0030.00617.74
8.1.210.0040.00418.79
8.1.200.0030.00617.35
8.1.190.0060.00317.14
8.1.180.0000.00718.10
8.1.170.0050.00317.62
8.1.160.0000.00722.01
8.1.150.0000.00718.88
8.1.140.0030.00517.36
8.1.130.0030.00318.79
8.1.120.0000.00717.52
8.1.110.0040.00417.44
8.1.100.0040.00417.39
8.1.90.0080.00017.36
8.1.80.0000.00717.44
8.1.70.0000.00717.47
8.1.60.0030.00517.52
8.1.50.0040.00417.46
8.1.40.0080.00317.46
8.1.30.0040.00417.64
8.1.20.0080.00017.67
8.1.10.0050.00217.39
8.1.00.0060.00317.35
8.0.300.0040.00420.03
8.0.290.0040.00416.75
8.0.280.0030.00318.39
8.0.270.0000.00817.14
8.0.260.0060.00018.43
8.0.250.0070.00016.98
8.0.240.0000.00716.86
8.0.230.0000.00716.87
8.0.220.0080.00016.70
8.0.210.0030.00316.70
8.0.200.0040.00416.82
8.0.190.0030.00316.86
8.0.180.0040.00416.86
8.0.170.0030.00516.81
8.0.160.0000.00716.86
8.0.150.0070.00016.73
8.0.140.0030.00416.77
8.0.130.0030.00313.28
8.0.120.0080.00016.68
8.0.110.0050.00216.71
8.0.100.0040.00416.78
8.0.90.0000.00816.67
8.0.80.0130.00316.77
8.0.70.0020.00516.83
8.0.60.0080.00016.79
8.0.50.0000.00716.84
8.0.30.0150.00717.07
8.0.20.0050.01317.40
8.0.10.0040.00416.95
8.0.00.0060.01116.89
7.4.330.0030.00315.03
7.4.320.0000.00616.61
7.4.300.0000.00716.60
7.4.290.0000.00716.63
7.4.280.0050.00316.38
7.4.270.0060.00016.52
7.4.260.0040.00416.50
7.4.250.0080.00016.48
7.4.240.0020.00516.56
7.4.230.0030.00516.69
7.4.220.0130.00416.44
7.4.210.0000.01516.51
7.4.200.0070.00016.29
7.4.160.0050.01116.67
7.4.150.0090.00917.40
7.4.140.0080.01017.86
7.4.130.0080.00916.57
7.4.120.0050.01216.50
7.4.110.0090.01216.21
7.4.100.0090.00916.53
7.4.90.0070.01116.57
7.4.80.0090.00919.39
7.4.70.0070.01016.56
7.4.60.0130.00916.46
7.4.50.0050.00316.61
7.4.40.0080.00816.48
7.4.30.0130.00316.64
7.4.00.0060.00914.86
7.3.330.0000.00513.09
7.3.320.0050.00013.11
7.3.310.0030.00316.25
7.3.300.0070.00016.25
7.3.290.0070.00816.29
7.3.280.0110.00916.22
7.3.270.0150.00617.40
7.3.260.0030.01316.44
7.3.250.0090.01116.54
7.3.240.0060.01016.44
7.3.230.0170.00016.39
7.3.210.0060.01016.43
7.3.200.0070.01019.39
7.3.190.0030.01316.36
7.3.180.0070.01016.32
7.3.170.0140.00316.42
7.3.160.0090.00916.63
7.3.10.0000.01316.61
7.3.00.0060.00616.47
7.2.330.0100.00716.39
7.2.320.0110.01416.65
7.2.310.0060.01816.65
7.2.300.0080.00816.61
7.2.290.0160.00816.50
7.2.130.0090.00916.58
7.2.120.0070.00316.86
7.2.110.0070.00716.81
7.2.100.0040.01116.80
7.2.90.0000.01416.88
7.2.80.0000.01516.88
7.2.70.0100.00616.84
7.2.60.0070.00816.85
7.2.50.0080.00516.97
7.2.40.0080.00416.71
7.2.30.0000.01016.93
7.2.20.0070.01016.88
7.2.10.0070.00716.82
7.2.00.0110.00218.16
7.1.250.0030.01015.71
7.1.200.0060.00615.93
7.1.100.0000.01518.06
7.1.70.0030.00517.32
7.1.60.0030.02219.57
7.1.50.0070.00716.95
7.1.00.0030.07722.48
7.0.200.0050.00216.71
7.0.140.0030.07022.12
7.0.60.0100.06720.04
7.0.50.0070.08317.89
7.0.40.0030.05720.13
7.0.30.0330.07320.18
7.0.20.0300.05320.33
7.0.10.0100.08719.99
7.0.00.0000.05020.08
5.6.280.0000.07720.87
5.6.210.0100.05020.71
5.6.200.0030.05718.16
5.6.190.0070.04320.64
5.6.180.0230.05020.57
5.6.170.0230.04720.44
5.6.160.0030.08020.46
5.6.150.0070.08318.18
5.6.140.0000.04018.12
5.6.130.0170.07318.08
5.6.120.0070.05021.04
5.6.110.0130.05721.13
5.6.100.0070.08321.02
5.6.90.0130.08020.99
5.6.80.0100.08020.36
5.5.350.0300.06320.32
5.5.340.0030.04718.02
5.5.330.0100.08720.29
5.5.320.0330.07320.41
5.5.310.0370.04020.34
5.5.300.0070.07717.91
5.5.290.0130.03017.96
5.5.280.0070.08020.86
5.5.270.0170.07720.71
5.5.260.0070.07020.86
5.5.250.0070.03720.67
5.5.240.0100.06720.03
5.4.450.0770.05019.61
5.4.440.0700.05719.63
5.4.430.0100.05719.48
5.4.420.0000.06719.46
5.4.410.0130.05319.25
5.4.400.0070.05719.34
5.4.390.0300.05319.00
5.4.380.0100.06719.16
5.4.370.0200.05718.65
5.4.360.0330.04718.72
5.4.350.0300.05018.50
5.4.340.0200.05718.73
5.4.320.0300.05318.61
5.4.310.0300.05018.68
5.4.300.0400.04718.48
5.4.290.0300.05318.71
5.4.280.0300.05718.61
5.4.270.0230.05718.45
5.4.260.0270.05018.61
5.4.250.0230.05718.64
5.4.240.0270.05718.73
5.4.230.0300.05018.56
5.4.220.0330.05018.52
5.4.210.0230.05318.70
5.4.200.0230.05016.46
5.4.190.0330.04718.50
5.4.180.0130.06718.56
5.4.170.0370.05018.64
5.4.160.0330.05018.69
5.4.150.0330.04718.42
5.4.140.0170.05716.28
5.4.130.0270.04716.17
5.4.120.0270.05016.05
5.4.110.0230.05016.30
5.4.100.0270.05016.08
5.4.90.0330.06016.05
5.4.80.0270.05316.18
5.4.70.0300.05016.18
5.4.60.0230.05716.32
5.4.50.0330.05716.16
5.4.40.0200.05316.06
5.4.30.0230.05016.18
5.4.20.0300.05016.36
5.4.10.0270.04716.26
5.4.00.0330.04315.51
5.3.290.0270.05714.73
5.3.280.0230.05014.64
5.3.270.0300.05014.52
5.3.260.0230.05314.66
5.3.250.0230.05314.54
5.3.240.0230.05714.57
5.3.230.0330.04014.60
5.3.220.0200.05314.61
5.3.210.0230.05314.46
5.3.200.0270.04714.54
5.3.190.0170.05714.56
5.3.180.0270.04714.51
5.3.170.0270.05014.48
5.3.160.0230.05014.55
5.3.150.0200.05314.47
5.3.140.0200.05314.46
5.3.130.0200.06314.53
5.3.120.0200.06014.45
5.3.110.0330.05314.58
5.3.100.0300.04714.00
5.3.90.0230.05313.98
5.3.80.0230.05014.02
5.3.70.0230.05314.01
5.3.60.0230.05313.98
5.3.50.0300.04713.93
5.3.40.0270.04713.86
5.3.30.0230.05013.80
5.3.20.0270.05013.76
5.3.10.0300.04313.64
5.3.00.0230.05313.63
5.2.170.0200.04311.30
5.2.160.0130.04711.07
5.2.150.0170.04711.29
5.2.140.0170.04711.15
5.2.130.0230.03711.03
5.2.120.0200.04011.11
5.2.110.0200.04311.05
5.2.100.0230.03711.08
5.2.90.0200.04011.06
5.2.80.0170.04311.16
5.2.70.0230.03711.13
5.2.60.0200.04311.01
5.2.50.0230.04010.93
5.2.40.0200.04011.04
5.2.30.0200.04010.95
5.2.20.0170.04010.96
5.2.10.0170.03710.86
5.2.00.0170.03710.73
5.1.60.0230.02710.09
5.1.50.0300.02010.02
5.1.40.0130.03710.09
5.1.30.0130.04010.39
5.1.20.0170.03710.38
5.1.10.0270.02710.27
5.1.00.0170.04310.25
5.0.50.0100.0338.56
5.0.40.0100.0278.59
5.0.30.0130.0408.40
5.0.20.0130.0238.32
5.0.10.0100.0278.29
5.0.00.0100.0438.27
4.4.90.0100.0205.91
4.4.80.0130.0205.86
4.4.70.0100.0205.88
4.4.60.0070.0275.86
4.4.50.0100.0205.91
4.4.40.0100.0335.89
4.4.30.0070.0235.81
4.4.20.0070.0235.92
4.4.10.0100.0205.97
4.4.00.0070.0375.94
4.3.110.0100.0205.75
4.3.100.0100.0205.82
4.3.90.0100.0175.89
4.3.80.0070.0335.80
4.3.70.0070.0205.78
4.3.60.0070.0205.80
4.3.50.0130.0175.79
4.3.40.0030.0375.76
4.3.30.0030.0234.68
4.3.20.0030.0234.54
4.3.10.0000.0234.50
4.3.00.0200.0237.02

preferences:
76.68 ms | 401 KiB | 5 Q