3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var = 'ABCDEFGH:/MNRPQR/'; echo "Original: $var<hr />\n"; /* These two examples replace all of $var with 'bob'. */ echo substr_replace($var, 'bob', 0) . "<br />\n"; echo substr_replace($var, 'bob', 0, strlen($var)) . "<br />\n"; /* Insert 'bob' right at the beginning of $var. */ echo substr_replace($var, 'bob', 0, 0) . "<br />\n"; /* These next two replace 'MNRPQR' in $var with 'bob'. */ echo substr_replace($var, 'bob', 10, -1) . "<br />\n"; echo substr_replace($var, 'bob', -7, -1) . "<br />\n"; /* Delete 'MNRPQR' from $var. */ echo substr_replace($var, '*', 10, -1) . "<br />\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)
8.3.40.0120.00318.63
8.3.30.0100.00718.92
8.3.20.0080.00019.98
8.3.10.0040.00423.71
8.3.00.0050.00319.38
8.2.170.0090.00922.96
8.2.160.0100.00320.39
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0070.01126.16
8.2.120.0050.00322.00
8.2.110.0090.00022.08
8.2.100.0040.00717.78
8.2.90.0040.00419.02
8.2.80.0040.00417.97
8.2.70.0060.00317.50
8.2.60.0040.00417.93
8.2.50.0050.00318.07
8.2.40.0040.00418.09
8.2.30.0000.00718.05
8.2.20.0030.00517.71
8.2.10.0080.00018.13
8.2.00.0040.00717.67
8.1.270.0040.00423.77
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0030.00623.93
8.1.230.0040.00718.97
8.1.220.0030.00617.74
8.1.210.0000.00818.77
8.1.200.0060.00317.13
8.1.190.0030.00617.41
8.1.180.0050.00318.10
8.1.170.0080.00018.42
8.1.160.0000.00822.00
8.1.150.0040.00418.53
8.1.140.0040.00417.48
8.1.130.0000.00717.82
8.1.120.0030.00517.44
8.1.110.0000.00817.36
8.1.100.0030.00617.47
8.1.90.0040.00317.45
8.1.80.0000.00717.46
8.1.70.0030.00317.34
8.1.60.0040.00417.63
8.1.50.0040.00417.54
8.1.40.0000.00817.50
8.1.30.0000.00817.45
8.1.20.0040.00417.57
8.1.10.0020.00517.48
8.1.00.0030.00517.42
8.0.300.0070.00018.77
8.0.290.0040.00417.18
8.0.280.0020.00518.30
8.0.270.0030.00317.23
8.0.260.0060.00017.26
8.0.250.0000.00716.89
8.0.240.0030.00316.81
8.0.230.0050.00216.99
8.0.220.0050.00216.91
8.0.210.0040.00416.82
8.0.200.0000.00616.95
8.0.190.0040.00416.93
8.0.180.0030.00516.89
8.0.170.0040.00416.86
8.0.160.0070.00016.89
8.0.150.0000.00816.84
8.0.140.0070.00016.83
8.0.130.0060.00013.34
8.0.120.0000.00816.84
8.0.110.0050.00316.73
8.0.100.0000.00816.73
8.0.90.0000.00716.86
8.0.80.0060.01016.85
8.0.70.0000.00816.87
8.0.60.0060.00316.82
8.0.50.0000.00716.75
8.0.30.0060.01117.00
8.0.20.0120.01117.40
8.0.10.0000.00716.98
8.0.00.0120.00816.63
7.4.330.0030.00315.08
7.4.320.0030.00516.52
7.4.300.0030.00316.43
7.4.290.0030.00316.52
7.4.280.0000.00716.50
7.4.270.0020.00516.33
7.4.260.0050.00216.48
7.4.250.0030.00516.49
7.4.240.0020.00516.45
7.4.230.0060.00016.36
7.4.220.0120.00616.43
7.4.210.0100.00616.50
7.4.200.0000.00716.62
7.4.190.0040.00316.34
7.4.160.0090.00616.29
7.4.150.0140.00717.40
7.4.140.0050.01217.86
7.4.130.0110.00616.36
7.4.120.0080.01016.59
7.4.110.0110.00716.48
7.4.100.0090.00916.25
7.4.90.0100.00716.52
7.4.80.0060.01019.39
7.4.70.0090.00616.41
7.4.60.0130.00316.41
7.4.50.0050.00316.46
7.4.40.0100.00722.77
7.4.30.0060.00916.42
7.4.00.0070.00914.93
7.3.330.0000.00612.95
7.3.320.0030.00313.12
7.3.310.0000.00716.10
7.3.300.0030.00316.30
7.3.290.0060.00816.27
7.3.280.0130.00516.27
7.3.270.0160.00317.40
7.3.260.0160.00616.33
7.3.250.0110.00816.25
7.3.240.0090.01016.29
7.3.230.0100.00616.39
7.3.210.0120.00616.47
7.3.200.0060.01119.39
7.3.190.0150.00416.42
7.3.180.0110.01116.52
7.3.170.0070.00716.52
7.3.160.0080.00816.39
7.3.120.0070.00715.06
7.3.110.0110.00714.68
7.3.100.0030.01514.63
7.3.90.0080.00814.95
7.3.80.0080.00814.70
7.3.70.0030.00614.82
7.3.60.0030.01014.76
7.3.50.0060.00614.56
7.3.40.0080.00414.71
7.3.30.0080.00314.93
7.3.20.0070.01016.72
7.3.10.0100.00616.59
7.3.00.0120.00316.87
7.2.330.0140.00416.66
7.2.320.0030.01516.74
7.2.310.0130.00916.57
7.2.300.0030.01316.68
7.2.290.0060.01516.33
7.2.250.0130.00414.56
7.2.240.0060.01215.13
7.2.230.0000.01615.25
7.2.220.0030.01514.89
7.2.210.0060.00915.21
7.2.200.0030.00614.88
7.2.190.0030.01114.95
7.2.180.0070.00714.70
7.2.170.0100.00314.82
7.2.160.0040.01114.87
7.2.150.0140.00416.61
7.2.140.0030.00617.03
7.2.130.0030.01317.00
7.2.120.0090.00916.83
7.2.110.0070.01016.73
7.2.100.0060.01216.60
7.2.90.0070.00716.84
7.2.80.0000.01017.09
7.2.70.0090.00917.02
7.2.60.0070.00716.77
7.2.50.0030.01016.86
7.2.40.0060.00916.77
7.2.30.0040.01116.81
7.2.20.0120.00416.49
7.2.10.0030.00616.82
7.2.00.0080.00818.25
7.1.330.0080.00815.86
7.1.320.0030.01015.70
7.1.310.0080.00815.93
7.1.300.0090.00015.51
7.1.290.0030.00915.87
7.1.280.0040.00415.71
7.1.270.0030.01015.48
7.1.260.0000.01215.50
7.1.250.0030.00515.81
7.1.240.0000.01415.74
7.1.230.0060.01015.87
7.1.220.0000.01415.86
7.1.210.0000.01915.79
7.1.200.0100.00315.71
7.1.190.0060.00315.82
7.1.180.0040.01115.81
7.1.170.0000.00915.76
7.1.160.0060.00615.85
7.1.150.0030.00715.81
7.1.140.0080.00415.58
7.1.130.0000.01515.46
7.1.120.0070.00715.82
7.1.110.0030.01015.82
7.1.100.0070.00516.76
7.1.90.0030.01015.98
7.1.80.0060.00615.63
7.1.70.0080.00516.57
7.1.60.0080.00717.58
7.1.50.0040.01316.31
7.1.40.0040.00415.75
7.1.30.0070.01015.64
7.1.20.0070.01015.81
7.1.10.0000.01215.94
7.1.00.0080.04019.06
7.0.330.0060.00315.40
7.0.320.0030.00615.31
7.0.310.0030.00715.45
7.0.300.0070.00415.40
7.0.290.0060.00615.45
7.0.280.0040.00415.13
7.0.270.0050.00315.47
7.0.260.0000.01215.37
7.0.250.0050.00315.13
7.0.240.0000.01215.57
7.0.230.0090.00615.64
7.0.220.0070.01015.52
7.0.210.0030.01315.37
7.0.200.0070.00716.19
7.0.190.0040.00415.48
7.0.180.0040.01115.61
7.0.170.0030.01415.38
7.0.160.0070.01015.19
7.0.150.0040.00415.51
7.0.140.0030.04018.68
7.0.130.0070.00315.51
7.0.120.0060.00615.26
7.0.110.0020.03417.77
7.0.100.0080.02017.66
7.0.90.0100.01717.70
7.0.80.0070.02317.63
7.0.70.0240.02317.76
7.0.60.0230.03317.67
7.0.50.0340.04017.54
7.0.40.0060.02016.67
7.0.30.0110.01616.58
7.0.20.0080.03216.72
7.0.10.0020.02916.64
7.0.00.0070.02616.60
5.6.400.0060.00614.30
5.6.390.0000.01514.06
5.6.380.0030.01014.61
5.6.370.0000.01114.24
5.6.360.0090.00414.55
5.6.350.0000.00814.09
5.6.340.0070.00714.20
5.6.330.0120.00614.60
5.6.320.0100.00314.53
5.6.310.0090.00314.42
5.6.300.0110.00714.23
5.6.290.0100.00714.25
5.6.280.0070.03917.70
5.6.270.0060.00314.57
5.6.260.0030.03117.52
5.6.250.0060.02617.62
5.6.240.0060.02717.48
5.6.230.0030.03817.40
5.6.220.0100.02817.49
5.6.210.0020.02617.49
5.6.200.0040.03217.63
5.6.190.0050.02317.63
5.6.180.0030.03117.47
5.6.170.0070.04417.26
5.6.160.0050.02017.36
5.6.150.0070.02117.52
5.6.140.0030.04617.32
5.6.130.0050.03917.40
5.6.120.0100.04217.55
5.6.110.0030.04417.53
5.6.100.0050.02617.31
5.6.90.0070.04517.35
5.6.80.0090.03217.16
5.6.70.0070.03517.21
5.6.60.0030.02517.19
5.6.50.0100.01717.08
5.6.40.0070.02117.00
5.6.30.0090.02217.00
5.6.20.0110.02017.08
5.6.10.0050.02417.08
5.6.00.0030.02317.22
5.5.380.0030.02515.86
5.5.370.0120.02315.91
5.5.360.0060.03716.07
5.5.350.0050.02815.99
5.5.340.0030.03316.03
5.5.330.0030.04116.06
5.5.320.0070.03216.19
5.5.310.0100.03916.32
5.5.300.0060.02316.01
5.5.290.0000.03316.10
5.5.280.0110.04115.91
5.5.270.0060.03016.27
5.5.260.0050.04716.13
5.5.250.0050.03616.12
5.5.240.0050.03115.76
5.5.230.0080.02315.91
5.5.220.0000.02615.77
5.5.210.0020.02415.78
5.5.200.0000.02415.43
5.5.190.0030.02615.77
5.5.180.0020.02715.87
5.5.170.0060.01314.25
5.5.160.0030.02515.57
5.5.150.0030.02315.68
5.5.140.0050.03815.76
5.5.130.0030.02315.76
5.5.120.0070.01815.63
5.5.110.0020.02315.96
5.5.100.0070.02015.63
5.5.90.0030.02215.80
5.5.80.0090.01815.73
5.5.70.0080.02015.50
5.5.60.0030.02615.79
5.5.50.0060.02315.86
5.5.40.0030.02115.74
5.5.30.0050.02315.75
5.5.20.0060.02615.51
5.5.10.0050.02215.68
5.5.00.0050.02315.54
5.4.450.0050.03315.04
5.4.440.0000.02815.21
5.4.430.0040.02115.02
5.4.420.0000.03415.16
5.4.410.0070.02315.06
5.4.400.0080.01814.90
5.4.390.0050.02514.82
5.4.380.0030.02114.86
5.4.370.0020.02314.92
5.4.360.0050.02514.83
5.4.350.0020.02614.94
5.4.340.0030.02414.98
5.4.330.0000.00910.84
5.4.320.0040.02114.88
5.4.310.0070.01914.91
5.4.300.0020.02515.09
5.4.290.0010.02314.93
5.4.280.0070.02114.84
5.4.270.0050.03314.93
5.4.260.0070.03414.90
5.4.250.0000.02514.93
5.4.240.0020.02314.92
5.4.230.0050.02114.79
5.4.220.0020.02414.80
5.4.210.0050.02014.88
5.4.200.0010.02315.10
5.4.190.0020.02314.99
5.4.180.0050.02014.90
5.4.170.0020.02314.84
5.4.160.0040.02214.91
5.4.150.0090.01715.06
5.4.140.0060.01913.49
5.4.130.0050.01813.64
5.4.120.0030.02013.55
5.4.110.0010.02113.56
5.4.100.0070.01813.58
5.4.90.0020.01713.60
5.4.80.0000.02013.60
5.4.70.0030.01813.69
5.4.60.0050.02313.59
5.4.50.0040.02513.54
5.4.40.0020.02213.66
5.4.30.0040.02013.50
5.4.20.0030.03313.59
5.4.10.0060.01913.57
5.4.00.0040.02113.30
5.3.290.0050.02012.68
5.3.280.0030.02212.59
5.3.270.0070.02012.62
5.3.260.0040.01912.59
5.3.250.0050.01812.61
5.3.240.0020.02612.69
5.3.230.0020.02212.58
5.3.220.0050.01812.63
5.3.210.0000.02312.68
5.3.200.0070.01812.57
5.3.190.0030.01612.63
5.3.180.0070.01512.60
5.3.170.0000.02412.63
5.3.160.0040.01912.59
5.3.150.0030.01712.63
5.3.140.0050.02212.66
5.3.130.0050.03312.57
5.3.120.0040.03412.57
5.3.110.0050.02512.66
5.3.100.0020.02212.37
5.3.90.0060.03012.25
5.3.80.0050.03712.29
5.3.70.0000.03112.28
5.3.60.0020.03212.28
5.3.50.0100.03012.29
5.3.40.0030.01812.24
5.3.30.0020.02012.24
5.3.20.0030.02012.11
5.3.10.0040.03812.21
5.3.00.0020.02012.13
5.2.170.0000.05712.06
5.2.160.0030.06012.06
5.2.150.0000.04012.06
5.2.140.0070.06312.06
5.2.130.0030.04012.06
5.2.120.0000.02712.06
5.2.110.0030.03712.06
5.2.100.0000.05312.06
5.2.90.0030.02712.06
5.2.80.0030.05312.06
5.2.70.0030.06012.06
5.2.60.0070.03012.06
5.2.50.0070.06012.06
5.2.40.0030.04312.06
5.2.30.0030.05712.06
5.2.20.0000.03012.06
5.2.10.0000.05012.06
5.2.00.0070.02712.06
5.1.60.0070.02712.06
5.1.50.0000.02312.06
5.1.40.0030.02012.06
5.1.30.0030.04312.06
5.1.20.0070.04012.06
5.1.10.0030.03712.06
5.1.00.0030.05312.06
5.0.50.0030.02012.06
5.0.40.0000.02012.06
5.0.30.0000.04712.06
5.0.20.0070.04712.06
5.0.10.0000.02712.06
5.0.00.0000.04712.06
4.4.90.0030.02012.06
4.4.80.0000.01712.06
4.4.70.0000.03312.06
4.4.60.0000.01712.06
4.4.50.0100.02712.06
4.4.40.0000.02312.06
4.4.30.0070.03012.06
4.4.20.0030.01712.06
4.4.10.0030.02712.06
4.4.00.0030.05012.06
4.3.110.0070.03312.06
4.3.100.0000.02012.06
4.3.90.0030.02312.06
4.3.80.0030.04012.06
4.3.70.0000.01712.06
4.3.60.0000.02312.06
4.3.50.0030.03012.06
4.3.40.0000.04712.06
4.3.30.0030.03312.06
4.3.20.0000.03012.06
4.3.10.0030.03012.06
4.3.00.0000.03712.06

preferences:
41.58 ms | 400 KiB | 5 Q