3v4l.org

run code in 300+ PHP versions simultaneously
<?php $card_no = "12345678901"; $no = str_pad(substr($card_no, -4), strlen($card_no), 'X', STR_PAD_LEFT); echo $no; ?>

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)
8.3.60.0100.01018.30
8.3.50.0150.00122.05
8.3.40.0220.00018.54
8.3.30.0130.00618.54
8.3.20.0120.00618.52
8.3.10.0180.00020.84
8.3.00.0140.00421.62
8.2.180.0100.01016.38
8.2.170.0070.00722.96
8.2.160.0060.00920.47
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0100.00726.16
8.2.120.0080.00021.05
8.2.110.0070.00320.25
8.2.100.0040.00717.78
8.2.90.0050.00219.05
8.2.80.0090.00017.97
8.2.70.0100.00017.38
8.2.60.0040.00418.03
8.2.50.0080.00018.07
8.2.40.0030.00618.28
8.2.30.0020.00519.53
8.2.20.0040.00417.62
8.2.10.0000.00717.69
8.2.00.0000.01117.75
8.1.280.0110.00425.92
8.1.270.0100.00723.99
8.1.260.0140.00326.35
8.1.250.0110.00728.09
8.1.240.0070.00322.55
8.1.230.0070.00320.85
8.1.220.0030.00618.77
8.1.210.0030.00618.77
8.1.200.0000.00817.36
8.1.190.0050.00217.41
8.1.180.0030.00618.10
8.1.170.0050.00218.52
8.1.160.0040.00418.84
8.1.150.0000.00718.52
8.1.140.0040.00417.38
8.1.130.0030.00317.85
8.1.120.0050.00317.38
8.1.110.0000.00817.41
8.1.100.0000.00817.25
8.1.90.0020.00517.43
8.1.80.0050.00317.39
8.1.70.0050.00317.31
8.1.60.0030.00517.48
8.1.50.0040.00417.41
8.1.40.0050.00217.35
8.1.30.0000.00817.62
8.1.20.0030.00617.61
8.1.10.0040.00417.33
8.1.00.0040.00417.43
8.0.300.0090.00020.03
8.0.290.0040.00417.18
8.0.280.0000.00718.41
8.0.270.0030.00317.29
8.0.260.0000.00716.72
8.0.250.0070.00016.90
8.0.240.0040.00716.82
8.0.230.0030.00316.89
8.0.220.0030.00316.68
8.0.210.0000.00716.82
8.0.200.0040.00416.74
8.0.190.0040.00416.75
8.0.180.0070.00016.68
8.0.170.0040.00416.86
8.0.160.0040.00416.75
8.0.150.0030.00316.73
8.0.140.0000.00716.62
8.0.130.0030.00313.23
8.0.120.0000.00816.67
8.0.110.0040.00416.77
8.0.100.0040.00416.88
8.0.90.0000.00716.71
8.0.80.0090.00616.80
8.0.70.0040.00416.71
8.0.60.0040.00416.74
8.0.50.0000.00716.68
8.0.30.0070.01117.13
8.0.20.0170.00617.40
8.0.10.0040.00416.94
8.0.00.0120.00816.68
7.4.330.0050.00016.79
7.4.320.0000.00616.34
7.4.300.0000.00716.40
7.4.290.0000.00916.52
7.4.280.0030.00316.53
7.4.270.0070.00016.39
7.4.260.0050.00013.24
7.4.250.0040.00416.39
7.4.240.0070.00016.47
7.4.230.0000.00716.62
7.4.220.0120.00316.48
7.4.210.0070.00816.47
7.4.200.0030.00316.49
7.4.190.0050.00516.37
7.4.160.0040.01116.19
7.4.150.0120.00617.40
7.4.140.0070.01017.86
7.4.130.0090.01016.35
7.4.120.0100.00716.42
7.4.110.0130.00316.34
7.4.100.0100.01316.40
7.4.90.0130.00616.48
7.4.80.0070.01419.39
7.4.70.0130.00316.30
7.4.60.0140.00416.48
7.4.50.0040.00416.27
7.4.40.0090.00322.77
7.4.30.0040.01216.55
7.4.10.0000.01614.83
7.4.00.0090.00715.07
7.3.330.0030.00313.12
7.3.320.0050.00213.09
7.3.310.0030.00316.39
7.3.300.0070.00016.23
7.3.290.0070.01116.20
7.3.280.0120.00516.27
7.3.270.0060.01217.40
7.3.260.0110.00518.24
7.3.250.0100.00816.22
7.3.240.0100.00716.17
7.3.230.0140.00616.39
7.3.210.0070.01116.29
7.3.200.0130.00619.39
7.3.190.0060.01716.33
7.3.180.0140.00816.60
7.3.170.0080.00816.50
7.3.160.0060.00916.25
7.3.130.0060.01215.00
7.3.120.0070.00914.63
7.3.110.0090.00914.67
7.3.100.0070.00914.94
7.3.90.0080.00914.48
7.3.80.0060.00614.74
7.3.70.0040.00614.80
7.3.60.0030.00914.64
7.3.50.0050.01014.81
7.3.40.0090.00514.46
7.3.30.0050.01014.76
7.3.20.0050.00716.53
7.3.10.0040.00816.67
7.3.00.0070.00416.54
7.2.330.0090.01516.58
7.2.320.0110.01416.51
7.2.310.0090.01316.27
7.2.300.0030.01316.76
7.2.290.0070.01016.71
7.2.260.0030.00915.02
7.2.250.0120.00615.03
7.2.240.0060.01115.14
7.2.230.0080.00514.91
7.2.220.0080.00514.81
7.2.210.0020.01214.76
7.2.200.0050.00914.84
7.2.190.0040.00914.83
7.2.180.0110.00514.89
7.2.170.0050.00814.82
7.2.160.0100.00414.97
7.2.150.0060.00816.92
7.2.140.0060.00416.76
7.2.130.0080.00716.84
7.2.120.0040.01016.88
7.2.110.0080.00616.85
7.2.100.0050.00816.86
7.2.90.0040.01116.86
7.2.80.0100.00416.70
7.2.70.0070.00716.67
7.2.60.0050.00716.82
7.2.50.0040.01016.60
7.2.40.0030.00816.73
7.2.30.0070.00516.72
7.2.20.0070.00816.69
7.2.10.0120.00016.74
7.2.00.0060.00717.60
7.1.330.0090.00715.97
7.1.320.0080.00615.79
7.1.310.0070.00916.01
7.1.300.0050.00615.68
7.1.290.0070.00815.86
7.1.280.0010.01015.62
7.1.270.0040.01015.56
7.1.260.0020.01115.71
7.1.250.0050.00815.78
7.1.240.0060.00815.83
7.1.230.0060.00815.83
7.1.220.0090.00415.92
7.1.210.0050.00715.78
7.1.200.0020.01115.72
7.1.190.0030.00815.92
7.1.180.0050.00715.79
7.1.170.0020.01215.69
7.1.160.0080.00315.79
7.1.150.0030.01015.89
7.1.140.0050.00915.88
7.1.130.0050.00815.75
7.1.120.0050.00615.78
7.1.110.0080.00115.76
7.1.100.0050.00616.60
7.1.90.0090.00515.81
7.1.80.0070.00515.87
7.1.70.0030.00716.30
7.1.60.0050.00816.96
7.1.50.0060.01016.13
7.1.40.0030.00715.75
7.1.30.0070.00515.84
7.1.20.0000.01315.80
7.1.10.0030.00915.88
7.1.00.0020.02018.08
7.0.330.0070.00315.36
7.0.320.0070.00315.29
7.0.310.0040.00615.37
7.0.300.0030.01015.44
7.0.290.0060.00515.46
7.0.280.0080.00515.32
7.0.270.0090.00415.23
7.0.260.0040.00915.38
7.0.250.0080.00515.34
7.0.240.0070.00715.57
7.0.230.0080.00015.56
7.0.220.0030.01015.48
7.0.210.0050.00815.44
7.0.200.0060.00715.93
7.0.190.0010.01015.34
7.0.180.0030.00815.41
7.0.170.0030.01015.31
7.0.160.0050.00715.52
7.0.150.0040.00815.30
7.0.140.0100.02417.69
7.0.130.0060.00715.33
7.0.120.0050.01015.36
7.0.110.0060.00515.36
7.0.100.0070.00515.35
7.0.90.0040.00615.41
7.0.80.0010.01115.39
7.0.70.0010.03317.48
7.0.60.0040.03517.39
7.0.50.0080.02917.67
7.0.40.0120.02215.72
7.0.30.0050.03315.71
7.0.20.0050.03215.70
7.0.10.0020.02515.65
7.0.00.0070.02415.66
5.6.400.0020.01014.31
5.6.390.0020.01014.26
5.6.380.0060.00514.23
5.6.370.0020.00714.31
5.6.360.0060.00514.05
5.6.350.0070.00514.31
5.6.340.0060.00614.38
5.6.330.0070.00714.05
5.6.320.0090.00514.35
5.6.310.0080.00614.06
5.6.300.0030.00914.39
5.6.290.0040.00914.42
5.6.280.0080.02716.39
5.6.270.0030.01114.38
5.6.260.0050.00814.23
5.6.250.0080.00614.46
5.6.240.0030.01014.17
5.6.230.0030.01114.20
5.6.220.0070.02816.51
5.6.210.0070.02816.39
5.6.200.0030.02816.56
5.6.190.0100.02816.50
5.6.180.0030.03516.53
5.6.170.0090.02016.37
5.6.160.0050.03416.67
5.6.150.0050.03216.38
5.6.140.0080.02216.49
5.6.130.0060.02016.59
5.6.120.0060.03216.57
5.6.110.0040.03416.49
5.6.100.0060.03116.50
5.6.90.0080.03116.61
5.6.80.0050.02316.16
5.6.70.0060.03116.27
5.6.60.0040.02316.29
5.6.50.0040.03216.26
5.6.40.0040.03116.22
5.6.30.0100.02316.35
5.6.20.0070.03116.21
5.6.10.0100.02916.15
5.6.00.0030.03416.13
5.5.380.0040.00614.04
5.5.370.0050.00814.10
5.5.360.0010.03516.32
5.5.350.0050.03516.46
5.5.340.0040.03016.46
5.5.330.0060.03016.42
5.5.320.0060.03216.43
5.5.310.0090.02916.36
5.5.300.0030.02716.21
5.5.290.0050.01916.32
5.5.280.0040.02116.35
5.5.270.0060.02216.52
5.5.260.0020.02316.38
5.5.250.0030.02116.25
5.5.240.0020.02316.24
5.5.230.0050.03316.27
5.5.220.0080.02816.02
5.5.210.0030.03216.16
5.5.200.0060.03016.17
5.5.190.0050.02716.21
5.5.180.0060.02916.11
5.5.170.0070.00914.07
5.5.160.0060.02916.13
5.5.150.0070.01816.17
5.5.140.0040.02716.02
5.5.130.0050.02516.10
5.5.120.0060.01515.96
5.5.110.0060.02516.14
5.5.100.0030.01916.18
5.5.90.0050.01816.07
5.5.80.0060.01816.17
5.5.70.0030.02616.08
5.5.60.0060.01616.08
5.5.50.0050.02016.17
5.5.40.0010.01916.03
5.5.30.0070.01216.13
5.5.20.0050.01816.05
5.5.10.0020.02015.80
5.5.00.0030.01915.97
5.4.450.0040.01513.82
5.4.440.0060.02713.66
5.4.430.0020.03413.80
5.4.420.0030.02613.48
5.4.410.0030.01713.83
5.4.400.0010.03113.46
5.4.390.0030.03213.64
5.4.380.0030.02513.61
5.4.370.0020.02413.54
5.4.360.0070.02813.55
5.4.350.0030.02313.56
5.4.340.0020.02713.49
5.4.330.0020.00710.77
5.4.320.0070.01813.63
5.4.310.0020.02613.70
5.4.300.0030.01913.68
5.4.290.0030.01713.35
5.4.280.0010.01813.61
5.4.270.0030.01613.52
5.4.260.0040.02713.60
5.4.250.0020.01813.70
5.4.240.0030.01713.54
5.4.230.0020.01613.56
5.4.220.0030.02813.59
5.4.210.0020.01613.68
5.4.200.0030.01413.67
5.4.190.0010.01713.59
5.4.180.0010.01813.58
5.4.170.0030.02313.58
5.4.160.0040.01713.53
5.4.150.0040.01613.57
5.4.140.0050.01412.59
5.4.130.0020.01712.74
5.4.120.0030.02612.69
5.4.110.0010.02012.83
5.4.100.0020.01612.62
5.4.90.0010.01412.57
5.4.80.0030.01712.56
5.4.70.0020.01512.77
5.4.60.0040.01512.76
5.4.50.0040.01612.70
5.4.40.0030.01612.74
5.4.30.0020.01812.74
5.4.20.0050.01312.83
5.4.10.0040.01312.77
5.4.00.0020.01712.55
5.3.290.0040.01512.27
5.3.280.0060.01312.26
5.3.270.0030.02412.23
5.3.260.0040.01912.21
5.3.250.0020.01812.21
5.3.240.0050.01812.21
5.3.230.0020.01512.24
5.3.220.0040.01512.20
5.3.210.0030.02912.22
5.3.200.0020.01612.16
5.3.190.0070.01212.19
5.3.180.0040.01312.23
5.3.170.0040.01012.25
5.3.160.0030.01512.30
5.3.150.0050.01312.25
5.3.140.0040.01312.26
5.3.130.0030.01712.21
5.3.120.0020.01712.23
5.3.110.0000.01712.17
5.3.100.0010.01812.19
5.3.90.0020.01612.27
5.3.80.0010.01712.19
5.3.70.0060.01612.13
5.3.60.0010.01512.27
5.3.50.0010.01812.19
5.3.40.0050.02112.20
5.3.30.0030.01312.22
5.3.20.0040.01412.16
5.3.10.0020.01812.07
5.3.00.0050.01912.15
5.2.170.0000.03315.78
5.2.160.0000.03315.78
5.2.150.0000.04715.78
5.2.140.0000.02315.78
5.2.130.0000.02715.78
5.2.120.0000.05315.78
5.2.110.0030.02715.78
5.2.100.0070.04015.78
5.2.90.0030.06015.78
5.2.80.0070.04715.78
5.2.70.0030.05015.78
5.2.60.0030.03715.78
5.2.50.0000.03015.78
5.2.40.0000.06015.78
5.2.30.0000.03015.78
5.2.20.0030.02715.78
5.2.10.0000.05715.78
5.2.00.0030.04015.78
5.1.60.0030.04715.78
5.1.50.0030.04715.78
5.1.40.0000.05715.78
5.1.30.0070.05715.78
5.1.20.0000.05715.78
5.1.10.0030.04315.78
5.1.00.0030.05315.78
5.0.50.0000.04315.78
5.0.40.0070.04015.78
5.0.30.0070.06015.78
5.0.20.0100.03315.78
5.0.10.0000.04715.78
5.0.00.0000.06315.78
4.4.90.0030.01715.78
4.4.80.0000.01715.78
4.4.70.0030.01315.78
4.4.60.0000.01315.78
4.4.50.0000.01315.78
4.4.40.0030.03715.78
4.4.30.0030.01715.78
4.4.20.0000.03015.78
4.4.10.0030.03015.78
4.4.00.0030.05315.78
4.3.110.0030.03315.78
4.3.100.0030.03315.78
4.3.90.0070.02315.78
4.3.80.0030.05315.78
4.3.70.0030.02315.78
4.3.60.0030.03315.78
4.3.50.0070.03315.78
4.3.40.0030.05315.78
4.3.30.0100.02715.78
4.3.20.0000.04015.78
4.3.10.0000.03715.78
4.3.00.0070.03015.78

preferences:
56.27 ms | 401 KiB | 5 Q