3v4l.org

run code in 300+ PHP versions simultaneously
<?php $bool = false; echo 'is ', var_export($bool, true), 'empty? ', var_export(empty($bool)), "\n"; $str = (string)$bool; echo 'is ', var_export($str, true), 'empty? ', var_export(empty($str)), "\n"; $bool = (bool)$string; echo 'is ', var_export($bool, true), 'empty? ', var_export(empty($bool)), "\n";

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)
8.3.60.0110.00318.30
8.3.50.0130.01021.27
8.3.40.0150.00618.88
8.3.30.0070.00720.30
8.3.20.0070.00020.20
8.3.10.0030.00521.79
8.3.00.0080.00022.20
8.2.180.0090.00616.75
8.2.170.0060.01222.96
8.2.160.0070.00722.26
8.2.150.0040.00424.18
8.2.140.0060.00324.66
8.2.130.0070.00026.16
8.2.120.0040.00420.65
8.2.110.0050.00521.99
8.2.100.0090.00317.91
8.2.90.0040.00419.21
8.2.80.0040.00419.21
8.2.70.0030.00717.50
8.2.60.0050.00317.93
8.2.50.0090.00018.07
8.2.40.0000.00918.16
8.2.30.0000.00719.32
8.2.20.0040.00417.84
8.2.10.0050.00217.83
8.2.00.0080.00017.83
8.1.280.0120.00625.92
8.1.270.0040.00423.99
8.1.260.0050.00326.35
8.1.250.0080.00028.09
8.1.240.0060.00323.86
8.1.230.0070.00419.12
8.1.220.0040.00417.77
8.1.210.0000.00818.77
8.1.200.0050.00717.13
8.1.190.0000.00817.53
8.1.180.0030.00518.77
8.1.170.0000.00818.45
8.1.160.0060.00318.83
8.1.150.0070.00018.54
8.1.140.0000.00717.38
8.1.130.0080.00017.76
8.1.120.0040.00417.41
8.1.110.0000.00817.51
8.1.100.0030.00317.38
8.1.90.0070.00017.38
8.1.80.0040.00417.54
8.1.70.0030.00317.41
8.1.60.0000.00917.66
8.1.50.0020.00517.50
8.1.40.0040.00417.47
8.1.30.0040.00417.66
8.1.20.0000.00817.68
8.1.10.0000.00817.50
8.1.00.0040.00417.49
8.0.300.0040.00418.77
8.0.290.0040.00417.18
8.0.280.0000.00718.38
8.0.270.0000.00717.33
8.0.260.0000.00616.90
8.0.250.0070.00017.04
8.0.240.0000.00817.09
8.0.230.0040.00417.01
8.0.220.0030.00317.03
8.0.210.0030.00316.82
8.0.200.0020.00516.93
8.0.190.0070.00017.03
8.0.180.0080.00016.96
8.0.170.0000.00816.88
8.0.160.0040.00417.01
8.0.150.0040.00416.99
8.0.140.0070.00016.96
8.0.130.0060.00013.40
8.0.120.0000.00816.86
8.0.110.0070.00017.05
8.0.100.0000.00816.94
8.0.90.0040.00416.83
8.0.80.0100.00616.98
8.0.70.0040.00416.94
8.0.60.0070.00016.93
8.0.50.0040.00416.84
8.0.30.0070.01317.13
8.0.20.0130.00617.40
8.0.10.0000.00716.93
8.0.00.0100.00916.61
7.4.330.0030.00315.00
7.4.320.0000.00616.53
7.4.300.0000.00716.42
7.4.290.0000.00716.57
7.4.280.0050.00216.53
7.4.270.0070.00016.63
7.4.260.0000.00813.33
7.4.250.0000.00716.56
7.4.240.0000.00716.54
7.4.230.0080.00016.61
7.4.220.0060.01216.65
7.4.210.0070.00716.60
7.4.200.0070.00016.33
7.4.190.0000.00716.48
7.4.160.0030.01716.72
7.4.150.0110.00717.40
7.4.140.0050.01217.86
7.4.130.0100.00916.55
7.4.120.0150.00316.49
7.4.110.0080.00916.63
7.4.100.0080.00816.62
7.4.90.0080.00816.60
7.4.80.0090.00919.39
7.4.70.0090.00916.59
7.4.60.0030.01316.53
7.4.50.0080.00016.66
7.4.40.0060.00922.77
7.4.30.0100.00716.70
7.4.00.0040.01114.84
7.3.330.0030.00313.04
7.3.320.0020.00213.12
7.3.310.0060.00016.35
7.3.300.0030.00316.30
7.3.290.0070.01316.21
7.3.280.0130.00716.31
7.3.270.0030.01317.40
7.3.260.0140.00316.29
7.3.250.0120.00716.34
7.3.240.0180.00416.53
7.3.230.0080.00916.39
7.3.210.0040.01416.35
7.3.200.0060.01019.39
7.3.190.0110.00716.43
7.3.180.0000.01616.34
7.3.170.0100.00616.36
7.3.160.0130.00316.48
7.3.120.0030.01314.79
7.3.10.0100.00616.18
7.3.00.0090.00516.56
7.2.330.0090.00816.60
7.2.320.0120.00916.36
7.2.310.0150.00316.54
7.2.300.0130.00316.28
7.2.290.0060.01016.54
7.2.130.0090.00516.76
7.2.120.0080.00816.66
7.2.110.0080.00716.73
7.2.100.0110.00916.64
7.2.90.0090.00916.71
7.2.80.0100.00616.81
7.2.70.0080.00816.69
7.2.60.0100.00816.61
7.2.50.0070.01016.80
7.2.40.0080.00816.68
7.2.30.0060.01116.73
7.2.20.0030.01016.69
7.2.10.0070.00616.64
7.2.00.0080.00816.79
7.1.250.0080.00815.59
7.1.240.0050.00815.58
7.1.230.0100.00315.67
7.1.220.0070.00515.66
7.1.210.0050.00615.68
7.1.200.0050.00715.58
7.1.190.0030.00615.62
7.1.180.0040.00815.59
7.1.170.0050.00815.80
7.1.160.0100.00215.67
7.1.150.0050.00515.61
7.1.140.0090.00115.69
7.1.130.0050.00615.74
7.1.120.0040.01115.75
7.1.110.0050.00815.65
7.1.100.0040.00816.63
7.1.90.0060.00715.79
7.1.80.0050.00615.67
7.1.70.0070.00516.20
7.1.60.0050.00716.92
7.1.50.0080.00716.15
7.1.40.0040.00915.62
7.1.30.0050.00615.54
7.1.20.0030.00915.60
7.1.10.0050.00515.74
7.1.00.0050.01718.02
7.0.330.0040.00915.52
7.0.320.0020.00915.34
7.0.310.0040.00715.29
7.0.300.0050.01015.34
7.0.290.0000.01015.31
7.0.280.0040.00515.21
7.0.270.0030.01015.38
7.0.260.0020.00915.42
7.0.250.0050.00915.35
7.0.240.0050.00815.26
7.0.230.0060.00415.38
7.0.220.0050.00715.15
7.0.210.0070.00615.40
7.0.200.0030.00615.95
7.0.190.0080.00715.38
7.0.180.0030.00815.25
7.0.170.0070.00515.27
7.0.160.0090.00415.27
7.0.150.0060.00415.25
7.0.140.0030.03017.55
7.0.130.0050.00815.49
7.0.120.0020.01015.44
7.0.110.0050.00715.18
7.0.100.0120.03216.97
7.0.90.0110.02916.87
7.0.80.0080.02116.87
7.0.70.0110.01716.76
7.0.60.0050.02416.90
7.0.50.0040.03417.01
7.0.40.0040.03315.71
7.0.30.0120.02215.60
7.0.20.0080.03215.55
7.0.10.0060.02715.58
7.0.00.0010.02315.68
5.6.380.0030.00914.22
5.6.370.0070.00714.13
5.6.360.0050.00614.30
5.6.350.0030.01014.28
5.6.340.0030.00814.18
5.6.330.0020.01114.10
5.6.320.0090.00414.34
5.6.310.0100.00414.33
5.6.300.0020.01014.32
5.6.290.0080.00514.29
5.6.280.0040.02916.51
5.6.270.0030.01014.12
5.6.260.0050.01014.13
5.6.250.0040.03016.19
5.6.240.0050.03416.30
5.6.230.0090.02216.47
5.6.220.0030.02116.48
5.6.210.0080.03216.28
5.6.200.0040.01916.53
5.6.190.0080.01616.51
5.6.180.0070.02216.47
5.6.170.0040.02016.49
5.6.160.0070.02316.40
5.6.150.0070.02116.54
5.6.140.0070.02616.55
5.6.130.0070.02016.51
5.6.120.0070.03216.49
5.6.110.0100.02916.46
5.6.100.0050.02916.50
5.6.90.0060.02116.45
5.6.80.0070.03016.18
5.6.70.0090.02616.27
5.6.60.0030.01816.17
5.6.50.0040.02016.37
5.6.40.0080.02916.22
5.6.30.0040.03216.19
5.6.20.0080.02416.33
5.6.10.0090.01816.18
5.6.00.0070.01716.30
5.5.380.0030.03314.17
5.5.370.0060.03014.27
5.5.360.0060.01614.24
5.5.350.0050.03214.14
5.5.340.0090.02014.39
5.5.330.0040.03014.34
5.5.320.0020.03014.34
5.5.310.0080.01514.37
5.5.300.0030.02714.31
5.5.290.0090.02714.40
5.5.280.0040.01814.37
5.5.270.0040.02714.36
5.5.260.0060.01614.35
5.5.250.0030.02114.25
5.5.240.0040.01814.13
5.5.230.0090.03014.15
5.5.220.0070.03014.07
5.5.210.0080.02714.07
5.5.200.0040.02114.13
5.5.190.0050.01914.14
5.5.180.0070.02714.19
5.5.170.0050.00511.15
5.5.160.0030.02014.17
5.5.150.0070.01914.02
5.5.140.0060.01614.08
5.5.130.0030.02014.14
5.5.120.0040.01614.15
5.5.110.0010.01514.15
5.5.100.0030.02114.08
5.5.90.0040.01414.05
5.5.80.0020.01814.02
5.5.70.0050.01513.97
5.5.60.0060.01313.91
5.5.50.0050.01514.03
5.5.40.0050.01814.10
5.5.30.0020.01814.09
5.5.20.0040.01514.05
5.5.10.0050.01614.01
5.5.00.0030.01613.93
5.4.450.0060.02213.82
5.4.440.0010.02013.75
5.4.430.0060.01513.83
5.4.420.0020.02613.70
5.4.410.0010.02013.78
5.4.400.0040.01513.68
5.4.390.0060.01713.64
5.4.380.0010.01813.70
5.4.370.0040.02813.69
5.4.360.0060.02613.71
5.4.350.0070.02813.79
5.4.340.0050.01713.66
5.4.330.0000.00710.93
5.4.320.0010.01713.69
5.4.310.0070.01313.68
5.4.300.0030.01613.77
5.4.290.0030.01813.57
5.4.280.0030.01813.69
5.4.270.0050.01313.76
5.4.260.0020.02013.65
5.4.250.0030.01913.76
5.4.240.0050.01413.75
5.4.230.0030.01813.68
5.4.220.0050.01613.69
5.4.210.0030.01813.70
5.4.200.0020.02013.64
5.4.190.0070.01313.63
5.4.180.0050.01513.60
5.4.170.0030.01713.63
5.4.160.0030.01813.67
5.4.150.0100.01113.71
5.4.140.0050.01112.79
5.4.130.0060.01412.83
5.4.120.0030.01312.83
5.4.110.0090.01012.66
5.4.100.0060.01412.68
5.4.90.0040.01512.74
5.4.80.0020.01912.75
5.4.70.0070.01212.81
5.4.60.0040.01412.82
5.4.50.0020.01612.81
5.4.40.0080.01412.77
5.4.30.0030.01612.79
5.4.20.0030.01512.80
5.4.10.0020.01612.68
5.4.00.0020.01412.50
5.3.290.0060.01612.12
5.3.280.0040.01712.03
5.3.270.0040.01712.10
5.3.260.0040.01812.11
5.3.250.0060.01512.11
5.3.240.0040.01312.07
5.3.230.0040.01512.09
5.3.220.0090.01111.98
5.3.210.0020.01711.90
5.3.200.0050.01511.99
5.3.190.0050.01511.99
5.3.180.0060.01312.07
5.3.170.0050.01312.08
5.3.160.0030.01712.10
5.3.150.0060.01512.04
5.3.140.0010.01612.02
5.3.130.0040.01512.04
5.3.120.0070.01311.98
5.3.110.0000.01812.07
5.3.100.0050.01311.84
5.3.90.0070.01211.91
5.3.80.0060.01111.84
5.3.70.0070.01011.80
5.3.60.0050.01311.80
5.3.50.0050.01411.83
5.3.40.0020.01511.77
5.3.30.0020.01611.88
5.3.20.0030.01311.66
5.3.10.0030.01311.69
5.3.00.0050.01211.67
5.2.170.0040.01310.90
5.2.160.0010.01310.95
5.2.150.0020.01111.00
5.2.140.0020.01210.85
5.2.130.0010.01210.93
5.2.120.0060.00710.93
5.2.110.0020.01210.94
5.2.100.0090.00710.86
5.2.90.0010.01310.92
5.2.80.0030.02210.84
5.2.70.0030.01810.81
5.2.60.0020.01510.90
5.2.50.0050.02310.89
5.2.40.0030.01110.92
5.2.30.0020.02310.90
5.2.20.0040.02010.75
5.2.10.0090.00910.86
5.2.00.0020.01110.81
5.1.60.0060.01710.58
5.1.50.0040.01910.55
5.1.40.0030.02110.57
5.1.30.0040.02110.67
5.1.20.0050.01310.63
5.1.10.0040.01510.66
5.1.00.0030.01310.54
5.0.50.0030.01710.54
5.0.40.0010.01710.54
5.0.30.0010.02510.54
5.0.20.0040.01010.54
5.0.10.0020.01210.54
5.0.00.0040.01910.54
4.4.90.0030.00610.54
4.4.80.0010.01310.54
4.4.70.0050.01210.54
4.4.60.0010.01410.54
4.4.50.0020.00710.54
4.4.40.0010.01810.54
4.4.30.0020.01310.54
4.4.20.0010.01010.54
4.4.10.0030.01310.54
4.4.00.0020.02110.54
4.3.110.0010.01410.54
4.3.100.0020.01310.54
4.3.90.0030.00610.54
4.3.80.0030.01610.54
4.3.70.0030.01110.54
4.3.60.0030.01010.54
4.3.50.0030.01010.54
4.3.40.0040.01010.54
4.3.30.0010.01110.54
4.3.20.0020.01010.54
4.3.10.0020.00710.54
4.3.00.0020.01410.54

preferences:
43.84 ms | 401 KiB | 5 Q