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)
8.3.40.0120.00318.71
8.3.30.0070.00718.58
8.3.20.0000.01118.61
8.3.10.0070.00020.97
8.3.00.0080.00019.56
8.2.170.0040.01122.96
8.2.160.0070.00720.53
8.2.150.0040.00424.18
8.2.140.0050.00224.66
8.2.130.0000.00726.16
8.2.120.0140.00020.82
8.2.110.0040.00721.37
8.2.100.0100.00818.46
8.2.90.0120.00319.04
8.2.80.0060.00618.97
8.2.70.0200.00418.15
8.2.60.0170.00418.36
8.2.50.0090.00818.42
8.2.40.0080.00418.56
8.2.30.0070.00220.04
8.2.20.0130.00318.24
8.2.10.0090.00418.02
8.2.00.0070.00718.06
8.1.270.0000.00723.99
8.1.260.0040.00426.35
8.1.250.0000.00828.09
8.1.240.0110.00519.67
8.1.230.0130.01119.78
8.1.220.0130.00618.62
8.1.210.0090.01119.31
8.1.200.0120.00317.93
8.1.190.0110.00217.90
8.1.180.0060.00718.26
8.1.170.0080.00318.50
8.1.160.0070.00418.66
8.1.150.0070.00419.48
8.1.140.0120.00117.76
8.1.130.0070.00617.87
8.1.120.0090.00417.88
8.1.110.0110.00417.70
8.1.100.0100.00417.69
8.1.90.0110.00317.71
8.1.80.0090.00417.69
8.1.70.0090.00617.74
8.1.60.0100.00617.81
8.1.50.0130.00517.69
8.1.40.0110.00617.71
8.1.30.0090.00517.86
8.1.20.0120.00617.80
8.1.10.0170.00517.65
8.1.00.0100.00517.65
8.0.300.0150.00718.92
8.0.290.0120.00717.48
8.0.280.0060.00618.12
8.0.270.0150.00817.29
8.0.260.0140.00217.07
8.0.250.0100.00417.06
8.0.240.0080.00517.00
8.0.230.0050.00617.18
8.0.220.0060.00617.06
8.0.210.0080.00517.09
8.0.200.0070.00517.10
8.0.190.0080.00417.09
8.0.180.0120.00317.04
8.0.170.0080.00517.04
8.0.160.0100.00517.01
8.0.150.0090.00616.96
8.0.140.0080.00616.99
8.0.130.0090.00716.38
8.0.120.0090.00917.00
8.0.110.0120.00317.00
8.0.100.0130.00617.01
8.0.90.0120.00617.04
8.0.80.0140.00816.93
8.0.70.0130.00616.96
8.0.60.0110.00516.98
8.0.50.0160.00417.00
8.0.30.0120.00617.01
8.0.20.0160.00617.16
8.0.10.0140.00517.03
8.0.00.0110.00517.32
7.4.330.0110.00315.78
7.4.320.0110.00216.62
7.4.300.0100.00416.62
7.4.290.0100.00516.61
7.4.280.0120.00416.65
7.4.270.0120.00316.63
7.4.260.0130.00215.98
7.4.250.0110.00316.62
7.4.240.0100.00516.52
7.4.230.0140.00016.62
7.4.220.0060.00816.59
7.4.210.0090.00716.45
7.4.200.0080.00416.58
7.4.190.0070.00516.59
7.4.180.0080.00716.59
7.4.160.0090.00516.48
7.4.150.0080.00616.75
7.4.140.0080.00716.89
7.4.130.0110.00516.37
7.4.120.0100.00616.44
7.4.110.0090.00716.48
7.4.100.0120.00516.37
7.4.90.0110.00516.42
7.4.80.0110.01016.97
7.4.70.0160.00416.44
7.4.60.0120.00516.52
7.4.50.0120.00416.30
7.4.40.0120.00817.63
7.4.30.0150.00316.47
7.4.20.0130.00416.47
7.4.10.0130.00316.38
7.4.00.0110.00316.12
7.3.330.0080.00515.92
7.3.320.0110.00515.85
7.3.310.0130.00616.45
7.3.300.0140.00616.38
7.3.290.0150.00216.46
7.3.280.0140.00416.36
7.3.270.0150.00216.62
7.3.260.0110.00817.19
7.3.250.0100.00716.44
7.3.240.0120.00916.52
7.3.230.0150.00616.49
7.3.220.0180.00316.46
7.3.210.0170.00516.45
7.3.200.0150.00717.00
7.3.190.0130.00616.48
7.3.180.0110.00616.42
7.3.170.0120.00416.42
7.3.160.0120.00616.57
7.3.150.0130.00416.51
7.3.140.0130.00616.43
7.3.130.0170.00316.41
7.3.120.0140.00616.10
7.3.110.0160.00616.16
7.3.100.0160.00615.92
7.3.90.0150.00716.23
7.3.80.0150.00516.01
7.3.70.0130.00716.24
7.3.60.0090.00716.22
7.3.50.0130.00216.23
7.3.40.0130.00416.19
7.3.30.0110.00516.22
7.3.20.0120.00617.45
7.3.10.0160.00317.21
7.3.00.0540.00516.86
7.2.340.0110.00716.91
7.2.330.0150.00716.57
7.2.320.0140.00716.53
7.2.310.0130.00516.48
7.2.300.0160.00316.50
7.2.290.0150.00616.59
7.2.280.0140.00816.48
7.2.270.0210.00316.52
7.2.260.0150.00816.42
7.2.250.0170.00716.48
7.2.240.0160.00616.07
7.2.230.0160.00716.15
7.2.220.0150.00716.17
7.2.210.0100.00616.13
7.2.200.0160.00416.34
7.2.190.0130.00516.33
7.2.180.0120.00616.30
7.2.170.0110.00616.31
7.2.160.0150.00616.28
7.2.150.0250.00617.41
7.2.140.0160.00717.40
7.2.130.0370.00617.04
7.2.120.0360.00716.92
7.2.110.0340.00516.64
7.2.100.0330.00616.75
7.2.90.0290.00516.70
7.2.80.0240.00716.65
7.2.70.0210.00616.77
7.2.60.0130.00716.70
7.2.50.0340.00516.76
7.2.40.0380.00616.75
7.2.30.0370.00816.73
7.2.20.0330.00716.73
7.2.10.0300.00716.84
7.2.00.0180.00817.04
7.1.330.0140.00316.71
7.1.320.0120.00616.69
7.1.310.0120.00416.70
7.1.300.0080.00716.63
7.1.290.0140.00416.63
7.1.280.0130.00516.62
7.1.270.0150.00516.63
7.1.260.0140.00516.61
7.1.250.0330.00416.02
7.1.240.0470.00416.20
7.1.230.0570.00415.88
7.1.220.0380.00715.91
7.1.210.0330.00515.89
7.1.200.0290.00615.84
7.1.190.0470.00515.83
7.1.180.0140.00615.81
7.1.170.0440.00516.06
7.1.160.0490.00515.90
7.1.150.0420.00515.78
7.1.140.0310.00615.83
7.1.130.0480.00815.80
7.1.120.0240.00715.79
7.1.110.0330.00515.84
7.1.100.0270.00516.13
7.1.90.0200.00415.86
7.1.80.0270.00515.92
7.1.70.0180.00616.00
7.1.60.0250.00518.60
7.1.50.0260.01018.57
7.1.40.0240.00518.48
7.1.30.0250.00618.54
7.1.20.0250.00618.55
7.1.10.0270.00615.91
7.1.00.0190.00515.90
7.0.330.0550.00515.96
7.0.320.0450.00515.92
7.0.310.0520.00715.58
7.0.300.0380.00515.51
7.0.290.0410.00315.45
7.0.280.0450.00715.58
7.0.270.0440.00615.55
7.0.260.0400.00815.57
7.0.250.0300.00515.66
7.0.240.0310.00615.73
7.0.230.0300.00315.70
7.0.220.0260.00715.60
7.0.210.0210.00515.60
7.0.200.0280.00115.66
7.0.190.0170.00615.76
7.0.180.0190.00715.74
7.0.170.0230.00415.85
7.0.160.0240.00715.72
7.0.150.0190.00915.70
7.0.140.0880.00615.79
7.0.130.0220.00615.78
7.0.120.0210.00615.75
7.0.110.0220.00415.66
7.0.100.0200.00515.73
7.0.90.0210.00615.77
7.0.80.0180.00415.74
7.0.70.0190.00815.75
7.0.60.0200.00715.77
7.0.50.0180.00415.74
7.0.40.0170.00615.75
7.0.30.0170.00515.66
7.0.20.0190.00315.69
7.0.10.0180.00515.73
7.0.00.0180.00615.70
5.6.400.0110.00716.20
5.6.390.0120.00716.15
5.6.380.0110.00615.41
5.6.370.0130.00615.44
5.6.360.0130.00515.54
5.6.350.0120.00615.40
5.6.340.0090.00815.49
5.6.330.0100.00615.42
5.6.320.0120.00515.55
5.6.310.0110.00515.58
5.6.300.0100.01316.15
5.6.290.0090.01216.29
5.6.280.0110.01116.22
5.6.270.0100.01316.26
5.6.260.0130.00916.22
5.6.250.0110.01016.25
5.6.240.0090.01216.29
5.6.230.0110.01016.34
5.6.220.0120.01016.19
5.6.210.0080.01216.33
5.6.200.0090.01616.27
5.6.190.0080.01316.28
5.6.180.0100.01016.22
5.6.170.0100.01016.31
5.6.160.0090.01416.31
5.6.150.0110.01116.28
5.6.140.0110.00916.34
5.6.130.0080.01416.28
5.6.120.0120.01516.24
5.6.110.0130.01116.28
5.6.100.0120.01116.20
5.6.90.0090.01116.23
5.6.80.0100.01216.12
5.6.70.0070.01616.24
5.6.60.0090.01316.14
5.6.50.0100.01616.16
5.6.40.0120.01416.15
5.6.30.0100.00916.17
5.6.20.0090.01416.13
5.6.10.0110.01016.13
5.6.00.0080.01316.15
5.5.380.0100.01014.96
5.5.370.0100.01114.97
5.5.360.0100.01314.84
5.5.350.0140.00914.92
5.5.340.0140.00814.89
5.5.330.0110.01014.92
5.5.320.0100.01214.88
5.5.310.0130.01114.89
5.5.300.0130.00914.88
5.5.290.0100.01014.86
5.5.280.0110.01314.84
5.5.270.0110.00914.94
5.5.260.0120.01214.82
5.5.250.0100.01015.00
5.5.240.0120.01514.88
5.5.230.0100.01014.80
5.5.220.0090.01014.78
5.5.210.0100.01114.89
5.5.200.0090.01414.75
5.5.190.0110.00714.70
5.5.180.0100.01014.79
5.5.170.0130.00315.37
5.5.160.0070.01014.83
5.5.150.0110.01014.69
5.5.140.0100.00814.77
5.5.130.0090.00814.78
5.5.120.0060.01214.77
5.5.110.0060.01214.74
5.5.100.0080.01214.82
5.5.90.0100.00814.87
5.5.80.0080.01014.79
5.5.70.0110.01314.83
5.5.60.0130.00914.81
5.5.50.0110.00914.73
5.5.40.0090.01214.86
5.5.30.0110.00814.82
5.5.20.0080.01014.91
5.5.10.0080.01014.83
5.5.00.0090.00914.83
5.4.450.0070.01013.91
5.4.440.0090.01013.84
5.4.430.0050.01113.95
5.4.420.0060.01113.92
5.4.410.0060.01113.88
5.4.400.0060.01013.80
5.4.390.0080.00913.77
5.4.380.0100.00713.86
5.4.370.0060.01313.80
5.4.360.0080.00813.81
5.4.350.0060.01013.78
5.4.340.0090.00813.84
5.4.330.0070.00512.97
5.4.320.0060.01013.85
5.4.310.0090.01113.83
5.4.300.0080.01513.86
5.4.290.0080.01113.88
5.4.280.0090.00813.82
5.4.270.0090.00913.86
5.4.260.0070.01313.87
5.4.250.0090.00813.82
5.4.240.0050.01513.84
5.4.230.0080.01013.80
5.4.220.0060.01013.74
5.4.210.0070.01013.82
5.4.200.0080.01213.75
5.4.190.0080.00913.80
5.4.180.0060.01013.72
5.4.170.0050.01113.74
5.4.160.0060.01013.72
5.4.150.0080.01113.74
5.4.140.0080.00813.45
5.4.130.0080.00713.37
5.4.120.0090.00713.43
5.4.110.0060.01013.51
5.4.100.0090.00713.42
5.4.90.0050.01113.45
5.4.80.0090.00613.44
5.4.70.0080.01113.41
5.4.60.0080.01113.48
5.4.50.0080.00713.44
5.4.40.0080.00913.46
5.4.30.0070.01013.49
5.4.20.0090.00913.47
5.4.10.0060.01013.43
5.4.00.0090.00713.37
5.3.290.0070.00813.52
5.3.280.0090.00813.53
5.3.270.0070.01113.55
5.3.260.0080.00813.56
5.3.250.0060.00913.53
5.3.240.0070.00913.47
5.3.230.0060.00913.53
5.3.220.0090.01113.47
5.3.210.0070.00913.44
5.3.200.0090.00813.51
5.3.190.0050.01013.54
5.3.180.0060.00913.52
5.3.170.0060.00913.51
5.3.160.0060.01113.53
5.3.150.0110.00813.59
5.3.140.0080.01213.53
5.3.130.0070.01013.53
5.3.120.0070.01013.47
5.3.110.0070.00913.51
5.3.100.0080.00813.57
5.3.90.0090.00713.56
5.3.80.0090.00613.41
5.3.70.0060.01013.42
5.3.60.0060.00913.47
5.3.50.0070.00813.47
5.3.40.0080.01013.47
5.3.30.0060.01013.45
5.3.20.0040.01113.51
5.3.10.0080.00713.37
5.3.00.0080.00813.47

preferences:
38.89 ms | 400 KiB | 5 Q