3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "0a0"; $prev = $a; for ($i=0; $i<10000; $i++) { $a++; if (!is_string($a)) { var_dump($prev); var_dump($a); var_dump($i); break; } $prev = $a; } var_dump($a); var_dump(is_string($a)); ?>

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)
8.3.60.0040.01816.75
8.3.50.0140.00322.01
8.3.40.0120.00918.68
8.3.30.0180.00019.14
8.3.20.0040.00420.48
8.3.10.0090.00021.77
8.3.00.0120.00319.29
8.2.180.0110.00718.41
8.2.170.0070.00722.96
8.2.160.0030.01022.28
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0040.00419.36
8.2.110.0030.00621.92
8.2.100.0080.00317.50
8.2.90.0090.00019.08
8.2.80.0080.00017.97
8.2.70.0120.00017.50
8.2.60.0000.00817.93
8.2.50.0040.00418.07
8.2.40.0000.00818.22
8.2.30.0000.00718.16
8.2.20.0000.00917.73
8.2.10.0070.00018.12
8.2.00.0040.00417.69
8.1.280.0120.00625.92
8.1.270.0090.00018.89
8.1.260.0000.00726.35
8.1.250.0040.00428.09
8.1.240.0030.00719.21
8.1.230.0110.00019.52
8.1.220.0090.00017.74
8.1.210.0040.00418.77
8.1.200.0030.00617.23
8.1.190.0040.00417.22
8.1.180.0040.00418.10
8.1.170.0000.01120.29
8.1.160.0000.00721.91
8.1.150.0070.00018.97
8.1.140.0000.00717.34
8.1.130.0060.00317.73
8.1.120.0000.00817.36
8.1.110.0070.00017.34
8.1.100.0000.00717.40
8.1.90.0050.00317.39
8.1.80.0000.00717.33
8.1.70.0030.00317.44
8.1.60.0040.00817.47
8.1.50.0050.00317.54
8.1.40.0050.00317.50
8.1.30.0000.00817.61
8.1.20.0040.00417.48
8.1.10.0000.00817.40
8.1.00.0000.01217.35
8.0.300.0040.00418.77
8.0.290.0040.00416.63
8.0.280.0000.00718.44
8.0.270.0040.00416.73
8.0.260.0030.00317.14
8.0.250.0060.00016.81
8.0.240.0000.00816.83
8.0.230.0030.00316.80
8.0.220.0000.01016.83
8.0.210.0070.00016.93
8.0.200.0040.00416.86
8.0.190.0030.00316.92
8.0.180.0040.00416.85
8.0.170.0000.00916.89
8.0.160.0000.00816.74
8.0.150.0000.00716.82
8.0.140.0030.00316.73
8.0.130.0050.00013.26
8.0.120.0000.00716.75
8.0.110.0070.00016.87
8.0.100.0080.00016.71
8.0.90.0050.00316.77
8.0.80.0060.01016.87
8.0.70.0050.00216.75
8.0.60.0030.00516.82
8.0.50.0050.00216.66
8.0.30.0170.00716.98
8.0.20.0050.01517.40
8.0.10.0000.00716.89
8.0.00.0090.00916.72
7.4.330.0070.00015.03
7.4.320.0030.00316.60
7.4.300.0030.00316.56
7.4.290.0030.00316.58
7.4.280.0000.00716.38
7.4.270.0030.00316.53
7.4.260.0040.00416.55
7.4.250.0000.00816.54
7.4.240.0000.00716.52
7.4.230.0040.00416.67
7.4.220.0130.00316.40
7.4.210.0060.01316.57
7.4.200.0000.00716.43
7.4.160.0070.00716.52
7.4.150.0090.00917.40
7.4.140.0130.00917.86
7.4.130.0100.00816.46
7.4.120.0110.00916.52
7.4.110.0110.00716.35
7.4.100.0100.00716.44
7.4.90.0170.00016.47
7.4.80.0110.01419.39
7.4.70.0100.00716.46
7.4.60.0080.00816.34
7.4.50.0030.00516.43
7.4.40.0090.01216.59
7.4.30.0130.01016.44
7.4.00.0090.00714.82
7.3.330.0050.00313.03
7.3.320.0130.00013.08
7.3.310.0000.00716.40
7.3.300.0030.00316.34
7.3.290.0010.01216.35
7.3.280.0070.00816.28
7.3.270.0130.01017.40
7.3.260.0070.01116.44
7.3.250.0090.00816.45
7.3.240.0150.00616.65
7.3.230.0150.00716.39
7.3.210.0070.01016.53
7.3.200.0120.00919.39
7.3.190.0100.00716.60
7.3.180.0140.00716.16
7.3.170.0030.01316.55
7.3.160.0000.01616.38
7.3.120.0100.01014.84
7.3.110.0090.00615.02
7.3.100.0070.00714.89
7.3.90.0120.00614.94
7.3.80.0110.00414.89
7.3.70.0060.00914.64
7.3.60.0070.00714.98
7.3.50.0040.01414.80
7.3.40.0000.01514.75
7.3.30.0070.01014.93
7.3.20.0040.01116.72
7.3.10.0070.00716.55
7.3.00.0000.01516.54
7.2.330.0070.01016.66
7.2.320.0070.01016.64
7.2.310.0060.01116.64
7.2.300.0100.00716.50
7.2.290.0100.00716.73
7.2.250.0030.01415.00
7.2.240.0060.01014.87
7.2.230.0030.00915.20
7.2.220.0030.01015.13
7.2.210.0060.01014.90
7.2.200.0060.01315.00
7.2.190.0090.00614.93
7.2.180.0030.01214.95
7.2.170.0060.00615.00
7.2.00.0070.00719.62
7.1.330.0070.00715.84
7.1.320.0070.00715.61
7.1.310.0110.00715.84
7.1.300.0030.01015.77
7.1.290.0000.01515.86
7.1.280.0030.01015.64
7.1.270.0090.00615.82
7.1.260.0070.00715.60
7.1.100.0060.00318.29
7.1.70.0000.01317.21
7.1.60.0070.01019.50
7.1.50.0080.00316.65
7.1.00.0030.07722.33
7.0.200.0260.00414.59
7.0.140.0030.06722.04
7.0.60.0030.07019.97
7.0.50.0000.05717.71
7.0.40.0100.04020.08
7.0.30.0270.05720.31
7.0.20.0200.09020.00
7.0.10.0330.04320.33
7.0.00.0100.05720.20
5.6.280.0030.07320.96
5.6.210.0170.07720.52
5.6.200.0100.07318.13
5.6.190.0200.08020.60
5.6.180.0100.04320.40
5.6.170.0330.04720.71
5.6.160.0100.08320.41
5.6.150.0030.08718.15
5.6.140.0000.06018.16
5.6.130.0070.08718.23
5.6.120.0070.03720.88
5.6.110.0130.06720.97
5.6.100.0030.04720.96
5.6.90.0030.04320.98
5.6.80.0100.06320.37
5.6.70.0170.08320.50
5.5.350.0170.04020.40
5.5.340.0230.06317.98
5.5.330.0100.08020.23
5.5.320.0170.04020.27
5.5.310.0300.07320.29
5.5.300.0100.07717.88
5.5.290.0100.08018.01
5.5.280.0130.07720.78
5.5.270.0130.07720.76
5.5.260.0130.08020.86
5.5.250.0030.04020.46
5.5.240.0130.06720.18
5.4.450.0630.05319.29
5.4.440.0770.05719.32
5.4.430.0870.05719.47
5.4.420.1030.04319.32
5.4.410.0170.04318.71
5.4.400.0370.05018.71
5.4.390.0300.06018.62
5.4.380.0430.04718.70
5.4.370.0400.07018.77
5.4.360.0370.05718.62
5.4.350.0370.05318.61
5.4.340.0270.05718.50
5.4.320.0300.06718.47
5.4.310.0370.06018.71
5.4.300.0430.07318.60
5.4.290.0330.07718.61
5.4.280.0500.06018.71
5.4.270.0230.07018.77
5.4.260.0430.05318.54
5.4.250.0270.05718.71
5.4.240.0270.07718.50
5.4.230.0570.05318.61
5.4.220.0400.07318.70
5.4.210.0400.06718.60
5.4.200.2130.06316.49
5.4.190.0270.05318.69
5.4.180.0300.05718.65
5.4.170.0370.06018.75
5.4.160.0300.05318.59
5.4.150.0370.06318.71
5.4.140.0530.06716.22
5.4.130.0330.04716.04
5.4.120.1500.04716.07
5.4.110.0370.05016.25
5.4.100.0470.05316.23
5.4.90.0230.06316.14
5.4.80.0530.05016.21
5.4.70.0170.08016.23
5.4.60.0300.05316.27
5.4.50.1030.05316.21
5.4.40.0330.04716.06
5.4.30.0370.05316.20
5.4.20.0500.05716.27
5.4.10.0230.06316.04
5.4.00.0430.06315.63
5.3.290.2770.08014.59
5.3.280.0270.06314.52
5.3.270.0300.05714.69
5.3.260.0330.06014.59
5.3.250.0330.05314.63
5.3.240.0470.05714.53
5.3.230.0530.05314.58
5.3.220.0330.06714.49
5.3.210.0430.05314.48
5.3.200.0300.04314.61
5.3.190.0300.05714.66
5.3.180.0300.06714.50
5.3.170.1570.07314.47
5.3.160.0230.06314.61
5.3.150.0300.05014.64
5.3.140.0330.05714.55
5.3.130.0400.04714.57
5.3.120.1300.06014.53
5.3.110.2070.06714.62
5.3.100.0570.06713.94
5.3.90.0270.08313.99
5.3.80.0300.08014.00
5.3.70.0270.07313.92
5.3.60.0370.07713.99
5.3.50.0370.06314.04
5.3.40.0370.05713.84
5.3.30.0470.04314.00
5.3.20.0500.04713.76
5.3.10.0400.05013.59
5.3.00.0230.06013.54
5.2.170.0330.04311.27
5.2.160.2030.05311.18
5.2.150.0370.05011.07
5.2.140.0870.05711.05
5.2.130.0100.05311.09
5.2.120.0170.06311.07
5.2.110.0300.05711.05
5.2.100.0970.05711.03
5.2.90.0200.04711.05
5.2.80.0130.05311.08
5.2.70.0470.04011.00
5.2.60.0230.06011.04
5.2.50.0300.06010.98
5.2.40.0300.06710.94
5.2.30.0400.05310.96
5.2.20.0230.04310.92
5.2.10.0200.04710.97
5.2.00.0300.03710.79
5.1.60.0130.04310.11
5.1.50.0230.04010.02
5.1.40.0200.04310.02
5.1.30.0230.03310.41
5.1.20.0130.04710.39
5.1.10.0030.04710.14
5.1.00.0200.03710.18
5.0.50.0130.0338.60
5.0.40.0170.0338.42
5.0.30.0130.0438.24
5.0.20.0070.0338.20
5.0.10.0130.0278.24
5.0.00.0530.0408.17
4.4.90.0170.0235.89
4.4.80.0100.0235.89
4.4.70.0200.0205.86
4.4.60.0770.0305.84
4.4.50.0130.0175.92
4.4.40.0170.0335.90
4.4.30.0130.0235.89
4.4.20.0200.0205.96
4.4.10.0130.0275.95
4.4.00.0130.0435.91
4.3.110.0070.0275.82
4.3.100.0170.0175.83
4.3.90.0230.0205.77
4.3.80.0070.0375.82
4.3.70.0130.0275.79
4.3.60.0100.0205.80
4.3.50.0070.0275.89
4.3.40.0100.0375.87
4.3.30.0200.0304.55
4.3.20.0130.0204.58
4.3.10.0030.0304.52
4.3.00.0100.0206.68

preferences:
63.49 ms | 401 KiB | 5 Q