3v4l.org

run code in 300+ PHP versions simultaneously
<?php $haystack = '12341234'; $needle = '23'; $replacer = ''; $start = strpos($haystack , $needle); $needleLen = strlen($needle); echo substr_replace ( $haystack , $replacer, $start , $needleLen );

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)
8.3.40.0110.00418.44
8.3.30.0030.01019.09
8.3.20.0050.00220.25
8.3.10.0070.00022.01
8.3.00.0000.00822.46
8.2.170.0100.01022.96
8.2.160.0110.00320.35
8.2.150.0030.00524.18
8.2.140.0000.00824.66
8.2.130.0080.00026.16
8.2.120.0060.00319.66
8.2.110.0070.00422.29
8.2.100.0080.00319.33
8.2.90.0070.00019.05
8.2.80.0040.00419.29
8.2.70.0040.00417.63
8.2.60.0050.00218.04
8.2.50.0040.00418.07
8.2.40.0030.00618.11
8.2.30.0020.00518.06
8.2.20.0040.00417.70
8.2.10.0020.00517.66
8.2.00.0050.00217.59
8.1.270.0000.00820.35
8.1.260.0000.00726.35
8.1.250.0070.00028.09
8.1.240.0110.00623.79
8.1.230.0070.00419.02
8.1.220.0000.00817.74
8.1.210.0000.00818.77
8.1.200.0060.00317.25
8.1.190.0040.00417.40
8.1.180.0060.00320.13
8.1.170.0000.00818.59
8.1.160.0090.00022.18
8.1.150.0000.00718.62
8.1.140.0040.00417.29
8.1.130.0000.00717.80
8.1.120.0070.00017.31
8.1.110.0060.00317.29
8.1.100.0000.00717.38
8.1.90.0000.00817.24
8.1.80.0000.00717.39
8.1.70.0040.00417.35
8.1.60.0030.00517.55
8.1.50.0000.00817.51
8.1.40.0080.00017.43
8.1.30.0000.00817.46
8.1.20.0000.00817.45
8.1.10.0000.00817.36
8.1.00.0070.00017.32
8.0.300.0040.00418.77
8.0.290.0080.00017.18
8.0.280.0060.00018.44
8.0.270.0040.00417.30
8.0.260.0000.00616.75
8.0.250.0070.00016.98
8.0.240.0000.00816.94
8.0.230.0030.00316.78
8.0.220.0030.00316.89
8.0.210.0030.00316.76
8.0.200.0000.00716.86
8.0.190.0000.00716.88
8.0.180.0050.00216.89
8.0.170.0000.00816.82
8.0.160.0000.00816.79
8.0.150.0080.00016.67
8.0.140.0000.00716.70
8.0.130.0050.00013.28
8.0.120.0060.00316.67
8.0.110.0040.00416.66
8.0.100.0000.00716.85
8.0.90.0030.00316.74
8.0.80.0140.00616.79
8.0.70.0030.00516.94
8.0.60.0000.00816.88
8.0.50.0040.00416.79
8.0.30.0100.01017.00
8.0.20.0060.01317.40
8.0.10.0040.00416.91
8.0.00.0080.00916.66
7.4.330.0000.00515.00
7.4.320.0000.00616.45
7.4.300.0000.00616.50
7.4.290.0000.00716.45
7.4.280.0040.00416.44
7.4.270.0040.00416.43
7.4.260.0040.00416.41
7.4.250.0000.00716.29
7.4.240.0020.00716.35
7.4.230.0030.00316.36
7.4.220.0130.01316.46
7.4.210.0070.01116.54
7.4.200.0070.00016.61
7.4.190.0030.00316.50
7.4.160.0120.00316.45
7.4.150.0110.00617.40
7.4.140.0080.01017.86
7.4.130.0070.01116.50
7.4.120.0120.00516.40
7.4.110.0210.00016.48
7.4.100.0150.00316.38
7.4.90.0070.01716.49
7.4.80.0090.00919.39
7.4.70.0070.01016.40
7.4.60.0090.00916.39
7.4.50.0030.00616.52
7.4.40.0070.01022.77
7.4.30.0100.00716.43
7.4.10.0030.01314.85
7.4.00.0040.01314.98
7.3.330.0030.00313.17
7.3.320.0000.00513.05
7.3.310.0030.00516.16
7.3.300.0060.00016.25
7.3.290.0060.00916.09
7.3.280.0110.00716.20
7.3.270.0070.01017.40
7.3.260.0140.00316.45
7.3.250.0120.00716.47
7.3.240.0030.01616.18
7.3.230.0100.00816.39
7.3.210.0160.00016.53
7.3.200.0060.01519.39
7.3.190.0070.01516.26
7.3.180.0120.00616.24
7.3.170.0140.00716.28
7.3.160.0090.00616.34
7.3.130.0060.01214.77
7.3.120.0070.01014.88
7.3.110.0030.01414.83
7.3.100.0060.00614.63
7.3.90.0080.00714.76
7.3.80.0050.00914.94
7.3.70.0050.00714.61
7.3.60.0110.00314.78
7.3.50.0060.00814.93
7.3.40.0090.00914.80
7.3.30.0060.00814.73
7.3.20.0040.00916.60
7.3.10.0090.00516.34
7.3.00.0050.01016.59
7.2.330.0090.01216.44
7.2.320.0080.01016.23
7.2.310.0130.00416.31
7.2.300.0030.01316.48
7.2.290.0060.01016.56
7.2.260.0070.01014.82
7.2.250.0070.00914.81
7.2.240.0050.01114.81
7.2.230.0090.00414.66
7.2.220.0050.00914.91
7.2.210.0090.00814.93
7.2.200.0040.00915.07
7.2.190.0030.01114.96
7.2.180.0040.01114.79
7.2.170.0030.01114.91
7.2.160.0110.00514.85
7.2.150.0040.01016.81
7.2.140.0100.00516.76
7.2.130.0070.00916.66
7.2.120.0110.00416.62
7.2.110.0080.00716.54
7.2.100.0080.00516.80
7.2.90.0090.00716.70
7.2.80.0060.01016.72
7.2.70.0120.00416.69
7.2.60.0090.00616.71
7.2.50.0100.00916.69
7.2.40.0090.00616.82
7.2.30.0080.00716.70
7.2.20.0110.00416.69
7.2.10.0070.01016.67
7.2.00.0100.00816.77
7.1.330.0050.01015.77
7.1.320.0070.00615.77
7.1.310.0080.00615.68
7.1.300.0060.00615.71
7.1.290.0020.01315.67
7.1.280.0080.00715.87
7.1.270.0050.01015.69
7.1.260.0010.01215.85
7.1.250.0070.00715.67
7.1.240.0020.01215.72
7.1.230.0080.00715.77
7.1.220.0050.00915.79
7.1.210.0070.00815.71
7.1.200.0050.00815.72
7.1.190.0080.00915.73
7.1.180.0050.01015.78
7.1.170.0050.00815.68
7.1.160.0050.00715.88
7.1.150.0080.00515.84
7.1.140.0030.00615.63
7.1.130.0030.01215.67
7.1.120.0090.00415.65
7.1.110.0060.00815.84
7.1.100.0070.00916.52
7.1.90.0060.00515.79
7.1.80.0070.00715.81
7.1.70.0050.00816.17
7.1.60.0060.00516.26
7.1.50.0070.00916.15
7.1.40.0070.00815.63
7.1.30.0030.01215.59
7.1.20.0060.00715.85
7.1.10.0060.00615.67
7.1.00.0040.02917.94
7.0.330.0030.00915.36
7.0.320.0060.00815.35
7.0.310.0060.00715.46
7.0.300.0060.00615.38
7.0.290.0030.01115.29
7.0.280.0060.00815.07
7.0.270.0030.00815.53
7.0.260.0080.00615.44
7.0.250.0050.01015.24
7.0.240.0050.00715.50
7.0.230.0070.00615.21
7.0.220.0040.00615.40
7.0.210.0070.00715.39
7.0.200.0060.00815.78
7.0.190.0040.00415.38
7.0.180.0070.00715.35
7.0.170.0070.00915.31
7.0.160.0030.01015.24
7.0.150.0000.01215.33
7.0.140.0080.02717.58
7.0.130.0100.00315.51
7.0.120.0040.00915.34
7.0.110.0040.00915.41
7.0.100.0020.00815.37
7.0.90.0030.00815.25
7.0.80.0030.00915.14
7.0.70.1700.01716.79
7.0.60.0130.02216.91
7.0.50.0100.03116.25
7.0.40.0050.02115.79
7.0.30.0050.01815.76
7.0.20.0160.02815.75
7.0.10.0150.03015.76
7.0.00.0050.02915.67
5.6.400.0030.00914.37
5.6.390.0090.00314.37
5.6.380.0060.00514.09
5.6.370.0030.01014.36
5.6.360.0070.00814.24
5.6.350.0070.00814.42
5.6.340.0040.00714.32
5.6.330.0100.00114.17
5.6.320.0070.00714.28
5.6.310.0050.01014.25
5.6.300.0070.00314.38
5.6.290.0050.00814.33
5.6.280.0050.03116.67
5.6.270.0060.00814.06
5.6.260.0080.00314.15
5.6.250.0040.00714.26
5.6.240.0070.00614.38
5.6.230.0120.00114.25
5.6.220.0050.00614.32
5.6.210.0060.02516.35
5.6.200.0060.03315.53
5.6.190.0060.02216.22
5.6.180.0110.02116.24
5.6.170.0140.03016.25
5.6.160.0040.01816.20
5.6.150.0050.02015.64
5.6.140.0020.01915.58
5.6.130.0100.02915.59
5.6.120.0090.03016.31
5.6.110.0070.02316.46
5.6.100.0040.02316.45
5.6.90.0100.03016.38
5.6.80.0080.02816.27
5.6.70.0060.01616.18
5.6.60.0050.00814.01
5.6.50.0020.01114.01
5.6.40.0040.00913.96
5.6.30.0050.00914.26
5.6.20.0050.00714.10
5.6.10.0020.01314.25
5.6.00.0070.00714.17
5.5.380.0060.00413.98
5.5.370.0050.00714.10
5.5.360.0090.00414.03
5.5.350.0080.01816.27
5.5.340.0050.02015.32
5.5.330.0040.01916.21
5.5.320.0080.03116.15
5.5.310.0070.02516.27
5.5.300.0040.03415.43
5.5.290.0060.03415.39
5.5.280.0030.03316.23
5.5.270.0080.03216.27
5.5.260.0030.03316.20
5.5.250.0010.02316.13
5.5.240.0070.02516.18
5.5.230.0060.00713.99
5.5.220.0060.00614.06
5.5.210.0030.00814.11
5.5.200.0070.00514.19
5.5.190.0050.00914.01
5.5.180.0010.01414.05
5.5.170.0080.00314.21
5.5.160.0090.00513.92
5.5.150.0080.00613.81
5.5.140.0030.00813.97
5.5.130.0080.00613.96
5.5.120.0070.00914.05
5.5.110.0050.00713.89
5.5.100.0050.00714.15
5.5.90.0080.00513.94
5.5.80.0080.00713.83
5.5.70.0080.00513.82
5.5.60.0050.00713.85
5.5.50.0070.00813.94
5.5.40.0020.01213.80
5.5.30.0060.00513.92
5.5.20.0080.00513.85
5.5.10.0060.01014.04
5.5.00.0040.01213.83
5.4.450.0020.02514.09
5.4.440.0060.02014.04
5.4.430.0020.02814.10
5.4.420.0060.02914.09
5.4.410.0010.03214.10
5.4.400.0000.02414.00
5.4.390.0090.01914.01
5.4.380.0020.03214.04
5.4.370.0030.02013.93
5.4.360.0020.03314.04
5.4.350.0060.02613.88
5.4.340.0070.02613.97
5.4.330.0030.00611.43
5.4.320.0010.01814.00
5.4.310.0060.01413.89
5.4.300.0020.01714.01
5.4.290.0020.01713.99
5.4.280.0020.02013.91
5.4.270.0030.01513.98
5.4.260.0030.01513.93
5.4.250.0030.01714.00
5.4.240.0040.02013.99
5.4.230.0040.01413.98
5.4.220.0050.01713.92
5.4.210.0030.01513.98
5.4.200.0010.01814.00
5.4.190.0010.01814.03
5.4.180.0020.01813.88
5.4.170.0050.01713.93
5.4.160.0050.01214.04
5.4.150.0070.01414.03
5.4.140.0060.01413.04
5.4.130.0030.01713.01
5.4.120.0040.01513.07
5.4.110.0040.01613.10
5.4.100.0030.01513.07
5.4.90.0070.01413.07
5.4.80.0040.01913.08
5.4.70.0030.01513.02
5.4.60.0060.01313.08
5.4.50.0030.01613.10
5.4.40.0020.02713.10
5.4.30.0050.02213.08
5.4.20.0020.01813.01
5.4.10.0040.01813.07
5.4.00.0050.01712.90
5.3.290.0010.01812.48
5.3.280.0020.02212.50
5.3.270.0050.01612.47
5.3.260.0020.01712.50
5.3.250.0040.01412.52
5.3.240.0020.01712.45
5.3.230.0060.01612.44
5.3.220.0010.01712.42
5.3.210.0010.01712.46
5.3.200.0020.01712.50
5.3.190.0030.01512.42
5.3.180.0010.01612.42
5.3.170.0050.01512.49
5.3.160.0040.01612.45
5.3.150.0020.01612.49
5.3.140.0050.02912.48
5.3.130.0050.02712.45
5.3.120.0020.02712.50
5.3.110.0020.03112.42
5.3.100.0030.01912.28
5.3.90.0020.01912.32
5.3.80.0010.03012.25
5.3.70.0050.02612.31
5.3.60.0050.02912.24
5.3.50.0040.02612.20
5.3.40.0020.02012.25
5.3.30.0040.02112.24
5.3.20.0030.02812.13
5.3.10.0040.02712.12
5.3.00.0090.02412.13
5.2.170.0030.06012.15
5.2.160.0030.05012.15
5.2.150.0030.05012.15
5.2.140.0030.06012.15
5.2.130.0000.06312.15
5.2.120.0030.05012.15
5.2.110.0030.04012.15
5.2.100.0070.05712.15
5.2.90.0000.06312.15
5.2.80.0000.03712.15
5.2.70.0000.07012.15
5.2.60.0070.05012.15
5.2.50.0000.06312.15
5.2.40.0070.05012.15
5.2.30.0070.04712.15
5.2.20.0070.06012.15
5.2.10.0000.05712.15
5.2.00.0070.05012.15
5.1.60.0030.04012.15
5.1.50.0000.05312.15
5.1.40.0030.05012.15
5.1.30.0000.06012.15
5.1.20.0000.03712.15
5.1.10.0030.05012.15
5.1.00.0170.03712.15
5.0.50.0030.04312.15
5.0.40.0030.03312.15
5.0.30.0030.06712.15
5.0.20.0030.03712.15
5.0.10.0070.04012.15
5.0.00.0070.05712.15
4.4.90.0000.03712.15
4.4.80.0030.02312.15
4.4.70.0000.03012.15
4.4.60.0000.03712.15
4.4.50.0030.03312.15
4.4.40.0070.04312.15
4.4.30.0030.03312.15
4.4.20.0000.04012.15
4.4.10.0000.03312.15
4.4.00.0000.05712.15
4.3.110.0030.03012.15
4.3.100.0030.03312.15
4.3.90.0070.02012.15
4.3.80.0000.05312.15
4.3.70.0070.02712.15
4.3.60.0100.01712.15
4.3.50.0030.03012.15
4.3.40.0000.04012.15
4.3.30.0000.03012.15
4.3.20.0000.03712.15
4.3.10.0030.03312.15
4.3.00.0000.02012.15

preferences:
45.48 ms | 400 KiB | 5 Q