3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = "this is a string with lots of spaces ."; while(strpos($str, " ") !== false) $str = str_replace(" ", " ", $str); echo $str;

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)
8.5.30.0090.00817.46
8.5.20.0110.00720.32
8.5.10.0130.00320.26
8.5.00.0100.01319.82
8.4.180.0120.01019.44
8.4.170.0150.00923.88
8.4.160.0130.00823.68
8.4.150.0020.00014.05
8.4.140.0140.00717.42
8.4.130.0130.00817.77
8.4.120.0120.00820.68
8.4.110.0100.01018.93
8.4.100.0120.01017.86
8.4.90.0120.00918.54
8.4.80.0050.00520.56
8.4.70.0080.01217.78
8.4.60.0130.00820.27
8.4.50.0120.00819.36
8.4.40.0130.00719.27
8.4.30.0130.00617.57
8.4.20.0070.01417.73
8.4.10.0130.00617.66
8.3.300.0120.00818.95
8.3.290.0090.01220.76
8.3.280.0120.00918.36
8.3.270.0080.01016.21
8.3.260.0080.01116.56
8.3.250.0120.00718.71
8.3.240.0140.00816.37
8.3.230.0100.01016.45
8.3.220.0110.00719.05
8.3.210.0080.01016.69
8.3.200.0060.00316.52
8.3.190.0060.00218.79
8.3.180.0080.01216.51
8.3.170.0060.01217.05
8.3.160.0100.00718.43
8.3.150.0160.00020.78
8.3.140.0060.00318.50
8.3.130.0030.00618.50
8.3.120.0060.00918.86
8.3.110.0080.00016.49
8.3.100.0060.00316.50
8.3.90.0080.00018.19
8.3.80.0060.00316.63
8.3.70.0090.00916.58
8.3.60.0090.00618.28
8.3.50.0160.00822.03
8.3.40.0140.00418.70
8.3.30.0140.00718.68
8.3.20.0070.01120.16
8.3.10.0090.00920.53
8.3.00.0040.00420.45
8.2.300.0150.00517.88
8.2.290.0050.00420.39
8.2.280.0070.00122.45
8.2.270.0130.00616.98
8.2.260.0040.00419.98
8.2.250.0060.00316.49
8.2.240.0040.00417.22
8.2.230.0050.00520.94
8.2.220.0050.00337.54
8.2.210.0040.01126.77
8.2.200.0030.00616.25
8.2.190.0110.01116.58
8.2.180.0110.01118.16
8.2.170.0150.00022.96
8.2.160.0070.00721.02
8.2.150.0000.00824.18
8.2.140.0160.00324.66
8.2.130.0070.00026.16
8.2.120.0070.00019.77
8.2.110.0000.00820.89
8.2.100.0050.00517.78
8.2.90.0050.00319.57
8.2.80.0000.00920.53
8.2.70.0040.00417.93
8.2.60.0000.00818.07
8.2.50.0000.00818.10
8.2.40.0030.00519.30
8.2.30.0040.00419.23
8.2.20.0040.00417.66
8.2.10.0040.00418.11
8.2.00.0000.00718.11
8.1.340.0140.00817.61
8.1.330.0100.00821.61
8.1.320.0070.01115.96
8.1.310.0070.01318.30
8.1.300.0120.00616.34
8.1.290.0000.00918.88
8.1.280.0090.00925.92
8.1.270.0090.00323.86
8.1.260.0080.00026.35
8.1.250.0000.00828.09
8.1.240.0000.00822.17
8.1.230.0120.00022.74
8.1.220.0030.00617.79
8.1.210.0000.00818.90
8.1.200.0030.00617.23
8.1.190.0080.00017.13
8.1.180.0100.00018.10
8.1.170.0040.00418.54
8.1.160.0040.00419.00
8.1.150.0050.00218.86
8.1.140.0000.00819.51
8.1.130.0040.00417.63
8.1.120.0040.00317.28
8.1.110.0000.00717.33
8.1.100.0040.00417.38
8.1.90.0040.00417.42
8.1.80.0040.00417.30
8.1.70.0000.00717.35
8.1.60.0040.00417.43
8.1.50.0030.00517.34
8.1.40.0000.00717.34
8.1.30.0050.00317.60
8.1.20.0030.00617.57
8.1.10.0030.00617.52
8.1.00.0080.00017.32
8.0.300.0040.00420.07
8.0.290.0050.00316.75
8.0.280.0040.00418.32
8.0.270.0000.00717.24
8.0.260.0030.00317.27
8.0.250.0040.00416.85
8.0.240.0030.00316.88
8.0.230.0030.00516.80
8.0.220.0030.00516.79
8.0.210.0070.00016.73
8.0.200.0000.00616.84
8.0.190.0000.00916.77
8.0.180.0070.00016.73
8.0.170.0040.00416.84
8.0.160.0040.00416.75
8.0.150.0040.00416.79
8.0.140.0070.00016.75
8.0.130.0030.00313.20
8.0.120.0050.00316.76
8.0.110.0050.00316.80
8.0.100.0040.00416.79
8.0.90.0000.00816.80
8.0.80.0070.01016.86
8.0.70.0040.00416.78
8.0.60.0000.00816.71
8.0.50.0050.00216.66
8.0.30.0110.00816.91
8.0.20.0140.00417.40
8.0.10.0080.00016.83
8.0.00.0090.00816.61
7.4.330.0050.00016.77
7.4.320.0060.00016.63
7.4.300.0060.00016.41
7.4.290.0060.00016.48
7.4.280.0000.00716.59
7.4.270.0000.00716.43
7.4.260.0000.00716.57
7.4.250.0030.00516.44
7.4.240.0050.00316.57
7.4.230.0000.00716.56
7.4.220.0060.01316.45
7.4.210.0130.00616.51
7.4.200.0000.00716.39
7.4.160.0100.00716.66
7.4.150.0140.00317.40
7.4.140.0110.01117.86
7.4.130.0060.01216.43
7.4.120.0010.01616.46
7.4.110.0120.00616.29
7.4.100.0000.02416.57
7.4.90.0100.00916.57
7.4.80.0140.00319.39
7.4.70.0090.00916.53
7.4.60.0100.00516.39
7.4.50.0000.01216.47
7.4.40.0160.00616.55
7.4.30.0050.01116.46
7.4.00.0070.00915.05
7.3.330.0030.00313.03
7.3.320.0000.00613.09
7.3.310.0070.00016.37
7.3.300.0000.00716.24
7.3.290.0080.00716.26
7.3.280.0090.00916.20
7.3.270.0080.00817.40
7.3.260.0110.00616.66
7.3.250.0070.01416.41
7.3.240.0100.01016.35
7.3.230.0110.00716.39
7.3.210.0090.01216.46
7.3.200.0130.00919.39
7.3.190.0060.01116.37
7.3.180.0070.00716.29
7.3.170.0120.00916.37
7.3.160.0070.00716.28
7.3.120.0030.00914.48
7.3.110.0060.00614.92
7.3.100.0000.01314.79
7.3.90.0000.01214.86
7.3.80.0090.00614.55
7.3.70.0070.00714.61
7.3.60.0040.00714.71
7.3.50.0070.00714.92
7.3.40.0040.00814.76
7.3.30.0110.00014.54
7.3.20.0100.00316.48
7.3.10.0070.01016.63
7.3.00.0060.00616.50
7.2.330.0210.00616.45
7.2.320.0090.00916.58
7.2.310.0080.00816.38
7.2.300.0060.01116.52
7.2.290.0100.00716.62
7.2.250.0060.00914.87
7.2.240.0100.01014.89
7.2.230.0090.00614.83
7.2.220.0030.00614.84
7.2.210.0100.00315.21
7.2.200.0060.00615.08
7.2.190.0100.00714.99
7.2.180.0070.00715.18
7.2.170.0070.00715.00
7.2.60.0070.00716.65
7.2.00.0000.01219.36
7.1.330.0030.01016.02
7.1.320.0030.01015.88
7.1.310.0000.00915.93
7.1.300.0040.00415.68
7.1.290.0060.00615.82
7.1.280.0030.01215.43
7.1.270.0030.01215.41
7.1.260.0070.00415.61
7.1.200.0090.00315.71
7.1.100.0040.01217.88
7.1.70.0000.00716.60
7.1.60.0140.01019.77
7.1.00.0000.08022.36
7.0.200.0190.01014.97
7.0.60.0200.03019.91
7.0.50.0000.04317.80
7.0.40.0130.08020.08
7.0.30.0430.07020.17
7.0.20.0430.06320.16
7.0.10.0070.05320.21
7.0.00.0070.08320.11
5.6.280.0070.07020.77
5.6.210.0030.04720.70
5.6.200.0070.08718.12
5.6.190.0170.03320.43
5.6.180.0330.08020.29
5.6.170.0270.08320.49
5.6.160.0100.07318.18
5.6.150.0100.07718.15
5.6.140.0030.05018.21
5.6.130.0000.04318.21
5.6.120.0000.04321.01
5.6.110.0030.06321.00
5.6.100.0070.05320.98
5.6.90.0100.08321.01
5.6.80.0070.06020.39
5.5.350.0200.08020.27
5.5.340.0070.07717.96
5.5.330.0030.07720.17
5.5.320.0270.04020.50
5.5.310.0300.05020.30
5.5.300.0070.06017.88
5.5.290.0070.04718.01
5.5.280.0100.07020.64
5.5.270.0030.09320.88
5.5.260.0130.07720.82
5.5.250.0170.04720.49
5.5.240.0300.05020.14

preferences:
35.23 ms | 403 KiB | 5 Q