3v4l.org

run code in 300+ PHP versions simultaneously
<?php class a { function __toString() { static $i = 0; $a = ['', 'a']; $r = $a[$i]; $i++; return $r; } } $a = new a; var_dump('' == $a and 'a' == $a); var_dump('' === (string)$a and 'a' === (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)
8.3.60.0120.00918.55
8.3.50.0180.00416.35
8.3.40.0070.01718.97
8.3.30.0070.00718.97
8.3.20.0050.00520.36
8.3.10.0000.00823.53
8.3.00.0080.00019.44
8.2.180.0130.01018.54
8.2.170.0120.00622.96
8.2.160.0070.00720.52
8.2.150.0060.00324.18
8.2.140.0000.00824.66
8.2.130.0070.00026.16
8.2.120.0080.00017.63
8.2.110.0030.00620.43
8.2.100.0060.00618.03
8.2.90.0040.00419.22
8.2.80.0040.00417.97
8.2.70.0030.00617.75
8.2.60.0000.00918.05
8.2.50.0000.00818.07
8.2.40.0040.00421.18
8.2.30.0040.00419.85
8.2.20.0000.00817.83
8.2.10.0050.00318.22
8.2.00.0040.00418.17
8.1.280.0120.00925.92
8.1.270.0030.00620.27
8.1.260.0050.00326.35
8.1.250.0000.00828.09
8.1.240.0090.00023.85
8.1.230.0080.00420.89
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0060.00617.23
8.1.190.0000.00817.35
8.1.180.0000.00918.10
8.1.170.0040.00418.45
8.1.160.0000.00722.00
8.1.150.0040.00418.88
8.1.140.0000.00817.33
8.1.130.0000.00717.57
8.1.120.0000.00717.49
8.1.110.0050.00317.40
8.1.100.0050.00217.49
8.1.90.0000.00817.44
8.1.80.0050.00317.50
8.1.70.0020.00517.35
8.1.60.0060.00317.50
8.1.50.0030.00617.51
8.1.40.0040.00417.39
8.1.30.0000.00817.55
8.1.20.0000.00717.58
8.1.10.0030.00617.47
8.1.00.0100.00317.37
8.0.300.0040.00418.77
8.0.290.0000.00816.75
8.0.280.0030.00318.32
8.0.270.0070.00017.27
8.0.260.0030.00317.30
8.0.250.0040.00416.93
8.0.240.0000.00817.06
8.0.230.0000.00617.01
8.0.220.0000.00717.02
8.0.210.0000.00716.91
8.0.200.0070.00016.99
8.0.190.0040.00417.00
8.0.180.0000.00716.91
8.0.170.0030.00516.89
8.0.160.0030.00517.00
8.0.150.0040.00416.88
8.0.140.0050.00316.95
8.0.130.0000.00513.45
8.0.120.0080.00016.91
8.0.110.0000.00716.82
8.0.100.0040.00416.75
8.0.90.0020.00516.75
8.0.80.0000.01716.84
8.0.70.0000.00816.99
8.0.60.0070.00016.94
8.0.50.0070.00016.79
8.0.30.0080.00917.13
8.0.20.0110.00917.40
8.0.10.0000.00816.88
8.0.00.0110.00716.66
7.4.330.0000.00615.08
7.4.320.0000.00816.59
7.4.300.0000.00716.49
7.4.290.0060.00016.51
7.4.280.0000.00716.61
7.4.270.0000.00716.58
7.4.260.0060.00316.58
7.4.250.0040.00416.45
7.4.240.0030.00316.44
7.4.230.0000.00816.45
7.4.220.0070.01716.55
7.4.210.0130.00316.57
7.4.200.0000.00716.52
7.4.160.0030.01316.57
7.4.150.0160.00417.40
7.4.140.0150.01117.86
7.4.130.0070.01116.51
7.4.120.0100.00716.62
7.4.110.0100.00716.64
7.4.100.0140.01016.61
7.4.90.0100.00716.40
7.4.80.0170.00019.39
7.4.70.0060.01416.38
7.4.60.0100.00616.63
7.4.50.0000.00916.46
7.4.40.0060.00916.41
7.4.30.0070.01516.54
7.4.00.0000.01015.14
7.3.330.0000.00513.15
7.3.320.0030.00313.18
7.3.310.0070.00016.23
7.3.300.0070.00016.37
7.3.290.0040.00416.18
7.3.280.0100.00816.35
7.3.270.0080.01117.40
7.3.260.0140.01016.58
7.3.250.0130.00616.45
7.3.240.0110.00816.53
7.3.230.0060.01216.55
7.3.210.0060.01116.49
7.3.200.0140.00419.39
7.3.190.0060.00916.52
7.3.180.0070.01016.48
7.3.170.0100.00716.39
7.3.160.0100.00716.59
7.2.330.0050.01616.73
7.2.320.0090.01316.61
7.2.310.0040.01416.50
7.2.300.0130.01016.63
7.2.290.0060.01616.63
7.2.60.0100.00316.99
7.2.00.0030.00919.55
7.1.200.0110.01115.40
7.1.100.0000.01217.92
7.1.70.0000.00717.30
7.1.60.0110.01420.03
7.1.50.0280.01134.85
7.1.00.0030.07722.54
7.0.200.0280.01015.05
7.0.60.0070.07320.04
7.0.50.0030.04017.95
7.0.40.0070.04320.02
7.0.30.0570.06720.19
7.0.20.0270.03720.16
7.0.10.0370.07720.07
7.0.00.0070.06020.10
5.6.280.0100.06021.11
5.6.210.0130.04720.53
5.6.200.0130.03318.18
5.6.190.0030.06020.43
5.6.180.0200.05020.65
5.6.170.0400.04320.54
5.6.160.0030.04320.43
5.6.150.0030.07018.12
5.6.140.0070.06018.24
5.6.130.0030.09018.19
5.6.120.0030.04321.14
5.6.110.0000.06021.14
5.6.100.0130.08021.02
5.6.90.0100.08021.00
5.6.80.0130.05720.41
5.5.350.0030.08020.46
5.5.340.0070.08318.10
5.5.330.0070.06720.08
5.5.320.0370.07020.28
5.5.310.0230.06720.24
5.5.300.0100.07717.95
5.5.290.0030.05718.02
5.5.280.0070.03720.77
5.5.270.0200.07320.89
5.5.260.0100.08020.98
5.5.250.0070.03720.79
5.5.240.0030.03720.18
5.4.450.0730.06019.61
5.4.440.0900.05019.62
5.4.430.0970.05719.57
5.4.420.0900.04719.13
5.4.410.0730.06719.55
5.4.400.0870.05719.28
5.4.390.0670.06319.19
5.4.380.0900.04718.85
5.4.370.0630.06019.21
5.4.360.0930.05018.82
5.4.350.0700.05719.26
5.4.340.0900.07019.25
5.4.320.0770.06719.11
5.4.310.0930.06019.29
5.4.300.0800.05719.12
5.4.290.0900.05019.14
5.4.280.1130.06719.13
5.4.270.1070.05019.20
5.4.260.1100.06018.97
5.4.250.1030.06719.10
5.4.240.1270.06319.35
5.4.230.0870.05019.12
5.4.220.0600.05718.86
5.4.210.0830.06319.18
5.4.200.0870.05016.94
5.4.190.0800.05319.18
5.4.180.0830.05019.01
5.4.170.0730.05319.00
5.4.160.0600.06318.92
5.4.150.0730.05019.33
5.4.140.0630.05316.35
5.4.130.0730.04716.51
5.4.120.1070.07316.50
5.4.110.0800.04716.57
5.4.100.0770.06716.55
5.4.90.0930.06716.72
5.4.80.0870.04716.29
5.4.70.0730.05316.30
5.4.60.0930.05316.47
5.4.50.0930.05716.31
5.4.40.0800.04716.39
5.4.30.0800.05316.34
5.4.20.1000.05016.41
5.4.10.0730.06016.37
5.4.00.0800.06015.86

preferences:
60.11 ms | 400 KiB | 5 Q