3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo $string1 = '05% off'. '<br/>'; $firstsub = substr( $string1, 4 ); var_dump(strtolower($firstsub));

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)
8.3.70.0090.01218.30
8.3.60.0100.01018.18
8.3.50.0140.00517.26
8.3.40.0150.00018.59
8.3.30.0030.01018.86
8.3.20.0180.00418.64
8.3.10.0050.00320.46
8.3.00.0030.00717.50
8.2.180.0100.01016.32
8.2.170.0100.01022.96
8.2.160.0150.00018.79
8.2.150.0030.00624.18
8.2.140.0070.00024.66
8.2.130.0000.00726.16
8.2.120.0080.00019.83
8.2.110.0090.00020.52
8.2.100.0040.00819.45
8.2.90.0030.00519.17
8.2.80.0060.00317.97
8.2.70.0080.00017.50
8.2.60.0050.00317.93
8.2.50.0030.00518.07
8.2.40.0030.00519.82
8.2.30.0070.00018.16
8.2.20.0000.00817.78
8.2.10.0050.00217.54
8.2.00.0040.00417.67
8.1.280.0070.00725.92
8.1.270.0070.00024.66
8.1.260.0060.00326.35
8.1.250.0040.00428.09
8.1.240.0040.00421.98
8.1.230.0080.00317.52
8.1.220.0050.00317.74
8.1.210.0060.00318.77
8.1.200.0030.00617.23
8.1.190.0040.00417.39
8.1.180.0030.00518.10
8.1.170.0040.00418.84
8.1.160.0030.00518.69
8.1.150.0040.00418.58
8.1.140.0030.00617.43
8.1.130.0000.00717.86
8.1.120.0040.00417.30
8.1.110.0040.00417.39
8.1.100.0000.00717.39
8.1.90.0040.00417.38
8.1.80.0000.00717.43
8.1.70.0030.00317.28
8.1.60.0000.00717.53
8.1.50.0080.00017.31
8.1.40.0040.00417.39
8.1.30.0000.00817.55
8.1.20.0040.00417.53
8.1.10.0030.00617.41
8.1.00.0040.00417.47
8.0.300.0000.00718.77
8.0.290.0070.00016.75
8.0.280.0030.00318.30
8.0.270.0000.00717.31
8.0.260.0030.00316.87
8.0.250.0000.00716.99
8.0.240.0040.00416.93
8.0.230.0070.00016.77
8.0.220.0060.00316.86
8.0.210.0070.00016.79
8.0.200.0030.00316.86
8.0.190.0070.00016.89
8.0.180.0040.00416.69
8.0.170.0060.00316.73
8.0.160.0070.00016.71
8.0.150.0060.00316.82
8.0.140.0030.00516.74
8.0.130.0030.00313.23
8.0.120.0000.00716.74
8.0.110.0030.00516.68
8.0.100.0090.00016.72
8.0.90.0030.00516.78
8.0.80.0120.00316.75
8.0.70.0000.00816.82
8.0.60.0070.00016.68
8.0.50.0000.00716.75
8.0.30.0140.00716.93
8.0.20.0120.00917.22
8.0.10.0040.00416.80
8.0.00.0140.00316.65
7.4.330.0020.00214.75
7.4.320.0060.00016.42
7.4.300.0060.00016.51
7.4.290.0000.00716.39
7.4.280.0030.00716.54
7.4.270.0000.00716.34
7.4.260.0060.00013.19
7.4.250.0000.00716.52
7.4.240.0000.00916.45
7.4.230.0000.00716.45
7.4.220.0100.00616.52
7.4.210.0100.00616.51
7.4.200.0040.00416.53
7.4.190.0070.00016.61
7.4.160.0060.01016.46
7.4.150.0160.00317.07
7.4.140.0160.00517.20
7.4.130.0070.01016.64
7.4.120.0110.00616.38
7.4.110.0110.00616.55
7.4.100.0120.00616.47
7.4.90.0160.00316.34
7.4.80.0030.01318.80
7.4.70.0090.00916.53
7.4.60.0040.01216.55
7.4.50.0000.00923.42
7.4.40.0030.01021.69
7.4.30.0000.01616.42
7.4.10.0000.01615.01
7.4.00.0060.01114.79
7.3.330.0000.00613.00
7.3.320.0000.00512.95
7.3.310.0000.00816.00
7.3.300.0070.00016.07
7.3.290.0070.00716.13
7.3.280.0090.00816.18
7.3.270.0040.01417.07
7.3.260.0070.01018.24
7.3.250.0080.00816.32
7.3.240.0060.01016.50
7.3.230.0060.01616.45
7.3.210.0060.00916.30
7.3.200.0070.01019.39
7.3.190.0100.01116.50
7.3.180.0090.00616.26
7.3.170.0130.00316.39
7.3.160.0130.00316.33
7.3.130.0060.01014.64
7.3.120.0060.01114.65
7.3.110.0050.00714.62
7.3.100.0060.00614.61
7.3.90.0040.01014.74
7.3.80.0080.00614.84
7.3.70.0080.00314.50
7.3.60.0080.00814.41
7.3.50.0050.00714.64
7.3.40.0070.00714.64
7.3.30.0070.00614.56
7.3.20.0070.00916.39
7.3.10.0050.00716.57
7.3.00.0070.00716.33
7.2.330.0000.01916.31
7.2.320.0000.01716.50
7.2.310.0090.01216.48
7.2.300.0090.01216.71
7.2.290.0100.00616.36
7.2.260.0060.01214.91
7.2.250.0070.01014.79
7.2.240.0070.00915.16
7.2.230.0030.01615.10
7.2.220.0080.00814.98
7.2.210.0060.00914.83
7.2.200.0030.01114.96
7.2.190.0050.00814.96
7.2.180.0020.01114.85
7.2.170.0020.01214.85
7.2.160.0120.00315.01
7.2.150.0030.00916.47
7.2.140.0080.00416.73
7.2.130.0030.01316.60
7.2.120.0020.01116.91
7.2.110.0000.01416.79
7.2.100.0030.01016.79
7.2.90.0040.01116.76
7.2.80.0080.00616.69
7.2.70.0020.01116.82
7.2.60.0030.01016.72
7.2.50.0100.00516.67
7.2.40.0030.00816.73
7.2.30.0110.00616.93
7.2.20.0060.00816.77
7.2.10.0050.00816.57
7.2.00.0110.00917.60
7.1.330.0080.00615.70
7.1.320.0040.00715.62
7.1.310.0060.00415.73
7.1.300.0030.00915.67
7.1.290.0060.00615.63
7.1.280.0030.00715.69
7.1.270.0050.00715.85
7.1.260.0020.00815.80
7.1.250.0040.00815.71
7.1.240.0070.01015.73
7.1.230.0000.01615.33
7.1.220.0040.01215.80
7.1.210.0070.00615.60
7.1.200.0020.01215.69
7.1.190.0000.01215.85
7.1.180.0060.00315.90
7.1.170.0110.00415.75
7.1.160.0000.01215.50
7.1.150.0050.00515.86
7.1.140.0050.00315.55
7.1.130.0040.01115.83
7.1.120.0070.00715.41
7.1.110.0030.01115.62
7.1.100.0100.00216.73
7.1.90.0030.00615.78
7.1.80.0060.00915.57
7.1.70.0040.00916.34
7.1.60.0080.01317.57
7.1.50.0090.00816.25
7.1.40.0070.00315.74
7.1.30.0040.01015.66
7.1.20.0030.01015.63
7.1.10.0120.00315.73
7.1.00.0020.04218.88
7.0.330.0070.00415.31
7.0.320.0100.00314.97
7.0.310.0040.01115.37
7.0.300.0040.00415.18
7.0.290.0070.01015.54
7.0.280.0060.00615.15
7.0.270.0070.01014.94
7.0.260.0100.00715.07
7.0.250.0000.01315.19
7.0.240.0100.00015.19
7.0.230.0130.00015.52
7.0.220.0040.00815.25
7.0.210.0090.00615.52
7.0.200.0030.00515.98
7.0.190.0040.00715.37
7.0.180.0100.00715.46
7.0.170.0030.01015.40
7.0.160.0070.00715.09
7.0.150.0000.01315.32
7.0.140.0030.04218.85
7.0.130.0080.00415.42
7.0.120.0020.02318.65
7.0.110.0100.04517.62
7.0.100.0080.04517.72
7.0.90.0100.03817.54
7.0.80.0120.04217.49
7.0.70.0110.02517.60
7.0.60.0130.04017.71
7.0.50.0090.04817.70
7.0.40.0050.04816.44
7.0.30.0100.04016.65
7.0.20.0070.04316.52
7.0.10.0070.03616.61
7.0.00.0030.02716.67
5.6.400.0100.00714.41
5.6.390.0030.00714.14
5.6.380.0030.01014.45
5.6.370.0030.00614.46
5.6.360.0030.01014.01
5.6.350.0140.00014.26
5.6.340.0030.01014.43
5.6.330.0000.01114.36
5.6.320.0040.01113.84
5.6.310.0100.00614.52
5.6.300.0030.00914.19
5.6.290.0000.01714.58
5.6.280.0080.03817.62
5.6.270.0060.00614.09
5.6.260.0050.04217.57
5.6.250.0070.04317.41
5.6.240.0060.04317.52
5.6.230.0060.03917.38
5.6.220.0080.03817.74
5.6.210.0110.04017.44
5.6.200.0100.03917.36
5.6.190.0050.04017.33
5.6.180.0120.03717.30
5.6.170.0050.04517.46
5.6.160.0060.04117.51
5.6.150.0090.04117.48
5.6.140.0070.04517.58
5.6.130.0070.04217.48
5.6.120.0050.03917.44
5.6.110.0070.04817.60
5.6.100.0090.03217.60
5.6.90.0120.03817.57
5.6.80.0050.04517.18
5.6.70.0120.03917.11
5.6.60.0100.04317.20
5.6.50.0030.04317.22
5.6.40.0090.04117.09
5.6.30.0090.02217.05
5.6.20.0120.03717.01
5.6.10.0070.04417.32
5.6.00.0090.04117.05
5.5.380.0070.04315.94
5.5.370.0120.02315.83
5.5.360.0050.04515.74
5.5.350.0070.04515.98
5.5.340.0080.04516.09
5.5.330.0030.04516.01
5.5.320.0020.03016.12
5.5.310.0070.04516.16
5.5.300.0100.04216.20
5.5.290.0080.04316.00
5.5.280.0080.04016.17
5.5.270.0090.04316.05
5.5.260.0100.03116.09
5.5.250.0080.04116.08
5.5.240.0100.04015.65
5.5.230.0090.04615.77
5.5.220.0120.05015.48
5.5.210.0080.04015.89
5.5.200.0080.02515.93
5.5.190.0090.03615.76
5.5.180.0140.02515.74
5.5.170.0000.01114.09
5.5.160.0060.04515.79
5.5.150.0040.02615.66
5.5.140.0060.02415.84
5.5.130.0030.03315.81
5.5.120.0070.04315.77
5.5.110.0100.02215.92
5.5.100.0110.02015.60
5.5.90.0080.03515.84
5.5.80.0070.03015.71
5.5.70.0100.03715.64
5.5.60.0050.02515.54
5.5.50.0050.02715.67
5.5.40.0050.03815.54
5.5.30.0030.03715.76
5.5.20.0060.03815.50
5.5.10.0080.04115.54
5.5.00.0050.03815.88
5.4.450.0060.03115.68
5.4.440.0050.04415.82
5.4.430.0080.04215.69
5.4.420.0030.04515.68
5.4.410.0100.03615.75
5.4.400.0050.03815.50
5.4.390.0070.02515.54
5.4.380.0050.03815.57
5.4.370.0020.04115.65
5.4.360.0050.04315.54
5.4.350.0030.02715.61
5.4.340.0100.04015.49
5.4.330.0000.01012.04
5.4.320.0070.04015.55
5.4.310.0040.04115.55
5.4.300.0070.03815.49
5.4.290.0090.03715.49
5.4.280.0000.03315.57
5.4.270.0100.03615.50
5.4.260.0040.04015.49
5.4.250.0030.02815.60
5.4.240.0030.04415.53
5.4.230.0050.02515.57
5.4.220.0020.04415.55
5.4.210.0090.03515.53
5.4.200.0030.02115.51
5.4.190.0050.04115.57
5.4.180.0040.02315.60
5.4.170.0070.03415.61
5.4.160.0050.04415.50
5.4.150.0030.04215.59
5.4.140.0060.03014.26
5.4.130.0020.03914.10
5.4.120.0080.03314.26
5.4.110.0120.03714.14
5.4.100.0110.03714.28
5.4.90.0100.02914.27
5.4.80.0100.03214.07
5.4.70.0080.03514.27
5.4.60.0060.03314.26
5.4.50.0090.03514.27
5.4.40.0120.03814.07
5.4.30.0100.03314.07
5.4.20.0050.04314.19
5.4.10.0050.04114.12
5.4.00.0050.04113.88
5.3.290.0070.04313.28
5.3.280.0010.03613.23
5.3.270.0020.04313.28
5.3.260.0100.03813.24
5.3.250.0030.04013.26
5.3.240.0030.03813.24
5.3.230.0070.03313.23
5.3.220.0030.03313.35
5.3.210.0030.04513.33
5.3.200.0060.03813.27
5.3.190.0030.04113.30
5.3.180.0110.03813.27
5.3.170.0030.02513.27
5.3.160.0050.04113.26
5.3.150.0060.04113.25
5.3.140.0070.02513.24
5.3.130.0020.03813.29
5.3.120.0070.02313.20
5.3.110.0050.03713.30
5.3.100.0040.03513.05
5.3.90.0050.04112.96
5.3.80.0030.04112.95
5.3.70.0020.04012.97
5.3.60.0020.04112.94
5.3.50.0060.03612.93
5.3.40.0030.04012.96
5.3.30.0060.03812.86
5.3.20.0050.03812.88
5.3.10.0070.03812.80
5.3.00.0050.03712.88
5.2.170.0130.06011.09
5.2.160.0030.06311.04
5.2.150.0030.04311.21
5.2.140.0070.04011.13
5.2.130.0070.06011.12
5.2.120.0070.06010.98
5.2.110.0070.05710.98
5.2.100.0070.06311.02
5.2.90.0000.03311.02
5.2.80.0030.06311.00
5.2.70.0030.06310.88
5.2.60.0100.04011.06
5.2.50.0000.06310.98
5.2.40.0070.06010.90
5.2.30.0130.04010.91
5.2.20.0030.06010.86
5.2.10.0000.05710.80
5.2.00.0070.05310.70
5.1.60.0070.05010.12
5.1.50.0130.04710.12
5.1.40.0030.05010.12
5.1.30.0030.06010.46
5.1.20.0030.06010.26
5.1.10.0100.04710.12
5.1.00.0030.06010.31
5.0.50.0000.04710.12
5.0.40.0000.05010.12
5.0.30.0100.02310.12
5.0.20.0030.01710.12
5.0.10.0070.04010.12
5.0.00.0030.06710.12
4.4.90.0030.03310.12
4.4.80.0000.02010.12
4.4.70.0030.03310.12
4.4.60.0070.03010.12
4.4.50.0000.03310.12
4.4.40.0000.05310.12
4.4.30.0030.03010.12
4.4.20.0100.02310.12
4.4.10.0000.04010.12
4.4.00.0030.05010.12
4.3.110.0030.03710.12
4.3.100.0030.03310.12
4.3.90.0030.02710.12
4.3.80.0000.05310.12
4.3.70.0030.01310.12
4.3.60.0000.03010.12
4.3.50.0070.02710.12
4.3.40.0030.04010.12
4.3.30.0000.02010.12
4.3.20.0070.02310.12
4.3.10.0000.03310.12
4.3.00.0000.03710.12

preferences:
52.82 ms | 401 KiB | 5 Q