3v4l.org

run code in 300+ PHP versions simultaneously
<?php $card_no = "0012345678901"; $no = str_pad(substr($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)
8.3.60.0150.00018.20
8.3.50.0130.00721.20
8.3.40.0070.01418.72
8.3.30.0080.00618.62
8.3.20.0080.00018.46
8.3.10.0040.00420.96
8.3.00.0070.00021.66
8.2.180.0120.00316.38
8.2.170.0080.01222.96
8.2.160.0110.00420.52
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0000.00826.16
8.2.120.0040.00421.05
8.2.110.0030.00620.38
8.2.100.0120.00017.91
8.2.90.0080.00019.13
8.2.80.0000.00817.97
8.2.70.0040.00417.63
8.2.60.0040.00418.04
8.2.50.0080.00018.07
8.2.40.0050.00317.91
8.2.30.0040.00419.35
8.2.20.0000.00817.68
8.2.10.0000.00817.79
8.2.00.0030.00517.73
8.1.280.0070.00725.92
8.1.270.0060.00323.99
8.1.260.0070.00726.35
8.1.250.0070.00028.09
8.1.240.0040.00422.14
8.1.230.0100.00317.45
8.1.220.0030.00517.74
8.1.210.0080.00018.77
8.1.200.0030.00617.23
8.1.190.0040.00417.38
8.1.180.0060.00318.10
8.1.170.0060.00318.46
8.1.160.0040.00418.79
8.1.150.0030.00518.55
8.1.140.0050.00217.44
8.1.130.0030.00317.87
8.1.120.0030.00317.43
8.1.110.0000.00717.35
8.1.100.0040.00417.36
8.1.90.0040.00417.26
8.1.80.0040.00417.40
8.1.70.0000.00717.36
8.1.60.0000.00817.48
8.1.50.0040.00417.38
8.1.40.0040.00417.46
8.1.30.0000.00717.52
8.1.20.0000.00717.54
8.1.10.0070.00017.54
8.1.00.0000.00817.31
8.0.300.0030.00518.77
8.0.290.0040.00416.63
8.0.280.0000.00718.35
8.0.270.0000.00817.16
8.0.260.0040.00418.46
8.0.250.0000.00716.96
8.0.240.0050.00316.90
8.0.230.0030.00316.74
8.0.220.0000.00716.84
8.0.210.0060.00316.74
8.0.200.0000.00716.76
8.0.190.0040.00416.89
8.0.180.0050.00316.89
8.0.170.0030.00616.73
8.0.160.0050.00316.91
8.0.150.0040.00416.65
8.0.140.0040.00416.72
8.0.130.0000.00513.28
8.0.120.0070.00016.77
8.0.110.0050.00316.64
8.0.100.0000.00816.76
8.0.90.0000.00716.88
8.0.80.0040.01116.88
8.0.70.0000.00716.88
8.0.60.0040.00416.86
8.0.50.0080.00016.79
8.0.30.0120.00716.78
8.0.20.0090.00917.40
8.0.10.0080.00016.89
8.0.00.0080.01016.75
7.4.330.0030.00316.69
7.4.320.0000.00616.38
7.4.300.0000.00616.52
7.4.290.0000.00816.50
7.4.280.0060.00016.33
7.4.270.0000.00716.51
7.4.260.0050.00013.23
7.4.250.0000.00716.48
7.4.240.0040.00416.48
7.4.230.0000.00716.26
7.4.220.0110.00616.56
7.4.210.0070.00816.48
7.4.200.0050.00316.25
7.4.190.0000.00716.44
7.4.160.0060.00916.44
7.4.150.0060.01017.40
7.4.140.0080.00817.86
7.4.130.0100.01116.44
7.4.120.0100.00816.46
7.4.110.0140.00416.49
7.4.100.0090.00916.36
7.4.90.0070.01616.37
7.4.80.0130.01019.39
7.4.70.0060.01116.50
7.4.60.0130.00716.36
7.4.50.0000.00816.31
7.4.40.0060.00922.77
7.4.30.0060.01016.23
7.4.00.0000.01715.07
7.3.330.0020.00213.14
7.3.320.0050.00013.16
7.3.310.0040.00316.18
7.3.300.0030.00316.24
7.3.290.0090.00516.27
7.3.280.0070.00816.27
7.3.270.0070.01017.40
7.3.260.0100.01118.24
7.3.250.0140.01016.34
7.3.240.0080.00816.08
7.3.230.0120.00916.40
7.3.210.0150.00616.54
7.3.200.0080.00819.39
7.3.190.0070.01116.31
7.3.180.0090.00916.36
7.3.170.0130.00316.32
7.3.160.0060.01216.29
7.3.120.0030.01314.70
7.2.330.0130.00316.39
7.2.320.0100.01316.54
7.2.310.0060.01216.30
7.2.300.0150.00916.71
7.2.290.0070.01416.61
7.2.00.0080.00419.47
7.1.200.0090.00315.71
7.1.100.0030.01018.29
7.1.70.0040.00816.90
7.1.60.0080.01219.17
7.1.50.0060.01616.82
7.1.00.0000.03722.46
7.0.200.0030.00916.81
7.0.140.0070.06722.09
7.0.100.0030.08719.89
7.0.90.0100.08019.84
7.0.80.0100.07719.86
7.0.70.0030.08719.88
7.0.60.0270.08719.91
7.0.50.0130.06020.26
7.0.40.0070.08320.04
7.0.30.0100.06320.07
7.0.20.0030.09019.98
7.0.10.0070.08319.88
7.0.00.0030.08719.99
5.6.280.0000.07721.09
5.6.250.0200.07320.66
5.6.240.0000.05720.70
5.6.230.0100.08320.48
5.6.220.0070.05020.61
5.6.210.0030.06720.56
5.6.200.0170.07721.02
5.6.190.0230.06720.89
5.6.180.0030.04020.95
5.6.170.0100.08021.02
5.6.160.0030.08021.05
5.6.150.0030.08721.08
5.6.140.0170.08020.94
5.6.130.0070.07321.00
5.6.120.0170.07721.00
5.6.110.0130.08320.87
5.6.100.0070.04020.86
5.6.90.0200.07020.94
5.6.80.0070.08020.28
5.6.70.0070.06020.46
5.6.60.0070.07320.33
5.6.50.0070.04320.49
5.6.40.0100.07720.37
5.6.30.0070.07320.32
5.6.20.0170.05020.30
5.6.10.0100.07720.38
5.6.00.0100.06720.23
5.5.380.0170.06320.36
5.5.370.0000.06020.30
5.5.360.0070.08320.31
5.5.350.0130.08020.36
5.5.340.0100.04020.84
5.5.330.0030.08720.68
5.5.320.0000.08320.59
5.5.310.0030.09020.71
5.5.300.0100.04320.74
5.5.290.0130.08020.73
5.5.280.0030.07720.71
5.5.270.0070.05020.65
5.5.260.0170.07020.81
5.5.250.0070.08320.59
5.5.240.0000.07020.05
5.5.230.0100.07320.11
5.5.220.0170.07020.20
5.5.210.0130.04020.12
5.5.200.0030.08320.20
5.5.190.0030.07720.18
5.5.180.0070.05320.05
5.5.160.0070.08019.94
5.5.150.0070.06719.92
5.5.140.0130.04320.01
5.5.130.0100.06320.06
5.5.120.0100.04320.06
5.5.110.0100.07720.04
5.5.100.0170.06720.02
5.5.90.0030.06020.04
5.5.80.0030.04319.85
5.5.70.0030.06020.10
5.5.60.0130.05720.01
5.5.50.0100.03319.88
5.5.40.0070.07319.91
5.5.30.0070.06319.93
5.5.20.0000.06319.98
5.5.10.0070.08019.87
5.5.00.0030.04719.87
5.4.450.0300.03019.39
5.4.440.0070.09019.36
5.4.430.0070.08019.43
5.4.420.0000.04319.42
5.4.410.0130.07319.14
5.4.400.0070.07018.79
5.4.390.0030.06719.23
5.4.380.0070.06718.80
5.4.370.0100.07019.06
5.4.360.0100.07719.25
5.4.350.0100.07319.10
5.4.340.0070.08018.90
5.4.320.0030.04718.81
5.4.310.0000.07319.14
5.4.300.0100.06019.11
5.4.290.0070.05319.07
5.4.280.0100.05318.94
5.4.270.0130.07319.12
5.4.260.0070.08019.05
5.4.250.0030.08719.07
5.4.240.0070.08019.05
5.4.230.0070.07319.12
5.4.220.0100.05318.93
5.4.210.0100.07019.05
5.4.200.0100.05318.90
5.4.190.0100.07319.04
5.4.180.0100.04018.77
5.4.170.0030.06719.02
5.4.160.0070.06319.20
5.4.150.0130.07018.94
5.4.140.0030.08316.22
5.4.130.0030.07716.30
5.4.120.0170.06716.32
5.4.110.0070.07716.26
5.4.100.0130.07016.21
5.4.90.0030.07316.36
5.4.80.0070.07716.41
5.4.70.0130.03716.22
5.4.60.0070.04016.35
5.4.50.0030.06716.22
5.4.40.0000.08016.37
5.4.30.0070.06316.28
5.4.20.0070.08016.27
5.4.10.0030.09016.18
5.4.00.0030.03315.73
5.3.290.0070.04014.52
5.3.280.0030.07314.45
5.3.270.0100.04014.54
5.3.260.0070.07714.46
5.3.250.0030.06714.46
5.3.240.0170.03714.60
5.3.230.0130.04314.54
5.3.220.0070.06714.57
5.3.210.0130.07314.38
5.3.200.0100.08714.55
5.3.190.0030.04314.43
5.3.180.0070.03714.38
5.3.170.0070.07314.57
5.3.160.0100.03314.43
5.3.150.0030.07314.50
5.3.140.0030.05314.51
5.3.130.0000.05314.48
5.3.120.0100.06314.39
5.3.110.0070.07014.53
5.3.100.0070.07313.85
5.3.90.0070.06314.00
5.3.80.0070.07313.79
5.3.70.0170.03014.00
5.3.60.0070.07713.98
5.3.50.0100.07313.88
5.3.40.0070.07313.80
5.3.30.0100.07013.86
5.3.20.0070.05013.54
5.3.10.0130.05013.51
5.3.00.0100.06013.63
5.2.170.0070.06011.16
5.2.160.0000.06011.16
5.2.150.0070.05711.19
5.2.140.0030.06311.19
5.2.130.0130.03011.08
5.2.120.0170.04011.02
5.2.110.0130.02311.14
5.2.100.0030.05711.14
5.2.90.0030.03711.09
5.2.80.0100.03310.91
5.2.70.0070.06011.09
5.2.60.0030.04010.91
5.2.50.0000.04310.84
5.2.40.0070.03010.81
5.2.30.0070.05010.76
5.2.20.0030.03711.00
5.2.10.0070.05710.76
5.2.00.0030.05010.71
5.1.60.0000.0409.99
5.1.50.0030.0309.83
5.1.40.0100.0439.80
5.1.30.0030.05010.26
5.1.20.0100.05010.27
5.1.10.0030.04310.09
5.1.00.0030.06010.05
5.0.50.0030.0278.60
5.0.40.0030.0438.40
5.0.30.0070.0638.27
5.0.20.0030.0438.25
5.0.10.0000.0238.19
5.0.00.0100.0538.18
4.4.90.0000.0337.51
4.4.80.0000.0377.51
4.4.70.0000.0207.51
4.4.60.0070.0277.51
4.4.50.0000.0277.51
4.4.40.0030.0277.51
4.4.30.0030.0277.51
4.4.20.0000.0337.51
4.4.10.0000.0277.51
4.4.00.0030.0507.51
4.3.110.0000.0207.51
4.3.100.0000.0237.51
4.3.90.0000.0207.51
4.3.80.0030.0507.51
4.3.70.0000.0407.51
4.3.60.0100.0237.51
4.3.50.0070.0237.51
4.3.40.0030.0307.51
4.3.30.0000.0377.51
4.3.20.0030.0337.51
4.3.10.0030.0307.51
4.3.00.0030.0177.51

preferences:
41.52 ms | 401 KiB | 5 Q