3v4l.org

run code in 300+ PHP versions simultaneously
<?php $my_key = uniqid("\x00"); $my_key = preg_replace('/[a-zA-Z]/', "4", $my_key); $var[$my_key] = TRUE; foreach($var as $key => $val) { if ($key === $my_key) { echo 'You got it right'; } else { echo 'You got it wrong'; } }

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)
7.4.10.0030.00915.09
7.4.00.0140.00015.27
7.3.130.0040.00715.02
7.3.120.0110.00515.03
7.3.110.0080.00815.03
7.3.100.0110.00515.07
7.3.90.0080.00815.06
7.3.80.0090.00515.09
7.3.70.0050.01014.97
7.3.60.0060.00915.05
7.3.50.0050.00914.98
7.3.40.0090.00515.01
7.3.30.0070.00415.03
7.3.20.0090.00516.79
7.3.10.0080.00816.98
7.3.00.0060.00816.75
7.2.260.0000.01315.25
7.2.250.0050.01115.16
7.2.240.0050.01215.13
7.2.230.0050.01015.30
7.2.220.0070.00815.13
7.2.210.0050.01015.22
7.2.200.0020.01315.17
7.2.190.0070.01015.04
7.2.180.0080.00615.21
7.2.170.0110.00315.28
7.2.160.0080.00715.20
7.2.150.0080.00417.05
7.2.140.0080.00317.22
7.2.130.0030.01317.02
7.2.120.0080.00917.07
7.2.110.0080.00717.13
7.2.100.0080.00917.01
7.2.90.0080.00917.15
7.2.80.0090.00616.97
7.2.70.0110.00617.24
7.2.60.0090.00517.04
7.2.50.0090.00616.99
7.2.40.0040.01116.98
7.2.30.0050.00917.06
7.2.20.0030.01117.07
7.2.10.0070.00617.14
7.2.00.0090.00417.10
7.1.330.0050.01115.96
7.1.320.0050.01016.08
7.1.310.0100.00515.92
7.1.300.0030.00916.03
7.1.290.0050.01015.88
7.1.280.0050.01015.75
7.1.270.0040.00716.03
7.1.260.0020.01316.06
7.1.250.0050.00915.85
7.1.240.0040.01015.98
7.1.230.0110.00515.85
7.1.220.0020.01215.99
7.1.210.0040.01015.98
7.1.200.0110.00616.00
7.1.190.0050.01016.00
7.1.180.0100.00415.87
7.1.170.0070.00815.85
7.1.160.0050.00915.91
7.1.150.0060.00915.85
7.1.140.0070.00615.88
7.1.130.0090.00315.91
7.1.120.0060.00715.84
7.1.110.0050.00915.94
7.1.100.0080.00615.89
7.1.90.0060.00715.97
7.1.80.0030.01116.03
7.1.70.0040.00816.22
7.1.60.0060.01016.82
7.1.50.0070.01016.14
7.1.40.0080.00415.90
7.1.30.0060.00816.00
7.1.20.0090.00815.88
7.1.10.0100.00715.86
7.1.00.0060.02417.47
7.0.330.0100.00515.47
7.0.320.0070.00815.47
7.0.310.0090.00615.50
7.0.300.0060.00715.59
7.0.290.0060.00515.43
7.0.280.0070.00815.41
7.0.270.0080.00715.58
7.0.260.0070.00715.59
7.0.250.0080.00715.59
7.0.240.0070.00515.52
7.0.230.0080.00715.65
7.0.220.0060.00715.55
7.0.210.0080.00515.72
7.0.200.0050.00715.90
7.0.190.0060.00815.58
7.0.180.0070.00415.51
7.0.170.0070.00715.61
7.0.160.0040.00915.35
7.0.150.0080.00915.55
7.0.140.0040.02717.21
7.0.130.0060.00715.57
7.0.120.0110.00415.53
7.0.110.0070.00715.57
7.0.100.0120.00315.62
7.0.90.0080.00515.56
7.0.80.0050.00815.55
7.0.70.0070.00815.30
7.0.60.0090.01916.60
7.0.50.0070.02616.13
7.0.40.0050.02915.22
7.0.30.0110.01915.23
7.0.20.0120.02315.12
7.0.10.0060.02715.23
7.0.00.0060.02015.21
5.6.400.0050.00914.85
5.6.390.0070.00814.81
5.6.380.0040.00714.47
5.6.370.0080.00614.42
5.6.360.0050.00814.61
5.6.350.0080.00714.55
5.6.340.0070.00414.28
5.6.330.0040.00814.42
5.6.320.0040.01114.31
5.6.310.0070.00714.43
5.6.300.0070.00714.42
5.6.290.0100.00214.44
5.6.280.0060.02316.04
5.6.270.0080.00814.66
5.6.260.0060.00614.28
5.6.250.0070.00714.63
5.6.240.0050.00914.53
5.6.230.0040.00914.42
5.6.220.0060.00914.44
5.6.210.0050.02616.04
5.6.200.0060.02815.53
5.6.190.0040.02316.03
5.6.180.0120.01315.86
5.6.170.0090.02515.95
5.6.160.0090.02115.87
5.6.150.0040.01615.32
5.6.140.0050.02815.43
5.6.130.0100.01415.29
5.6.120.0050.01616.06
5.6.110.0080.02616.07
5.6.100.0070.02616.00
5.6.90.0060.02016.04
5.6.80.0050.01515.92
5.6.70.0060.00614.30
5.6.60.0070.00814.33
5.6.50.0050.00914.48
5.6.40.0010.01114.44
5.6.30.0090.00714.29
5.6.20.0070.00714.48
5.6.10.0060.01114.32
5.6.00.0070.00514.20
5.5.380.0070.00613.31
5.5.370.0080.00713.45
5.5.360.0040.00813.25
5.5.350.0070.02714.97
5.5.340.0070.02114.53
5.5.330.0050.02715.10
5.5.320.0170.01915.09
5.5.310.0110.02315.08
5.5.300.0060.02414.50
5.5.290.0150.01414.52
5.5.280.0070.02115.20
5.5.270.0030.03015.26
5.5.260.0090.01815.19
5.5.250.0040.02615.06
5.5.240.0060.02715.10
5.5.230.0050.00413.21
5.5.220.0060.00613.08
5.5.210.0070.00413.40
5.5.200.0020.01013.31
5.5.190.0040.00913.24
5.5.180.0100.00413.24
5.5.170.0050.00513.22
5.5.160.0060.00813.18
5.5.150.0060.00813.20
5.5.140.0040.01013.15
5.5.130.0080.00513.20
5.5.120.0050.01113.33
5.5.110.0090.00613.25
5.5.100.0140.00113.37
5.5.90.0110.00413.32
5.5.80.0040.01013.23
5.5.70.0080.00513.27
5.5.60.0050.00713.13
5.5.50.0080.00613.24
5.5.40.0030.00913.22
5.5.30.0030.01113.20
5.5.20.0060.00813.10
5.5.10.0050.00913.01
5.5.00.0050.01012.97
5.4.450.0110.01513.47
5.4.440.0110.01313.45
5.4.430.0120.01613.42
5.4.420.0230.01513.45
5.4.410.0120.01513.41
5.4.400.0070.01313.35
5.4.390.0160.01513.38
5.4.380.0110.02313.26
5.4.370.0100.02013.30
5.4.360.0110.01713.24
5.4.350.0170.02213.25
5.4.340.0110.01813.27
5.4.330.0030.00611.47
5.4.320.0080.01111.67
5.4.310.0060.01611.67
5.4.300.0070.01711.71
5.4.290.0070.01211.72
5.4.280.0060.01511.66
5.4.270.0060.01511.65
5.4.260.0090.01211.72
5.4.250.0050.01611.67
5.4.240.0080.01311.65
5.4.230.0040.01611.67
5.4.220.0080.01411.72
5.4.210.0080.01211.65
5.4.200.0070.01311.71
5.4.190.0050.01511.65
5.4.180.0090.01411.72
5.4.170.0060.01711.70
5.4.160.0050.01511.68
5.4.150.0080.01211.65
5.4.140.0050.01311.58
5.4.130.0060.01211.60
5.4.120.0050.01411.63
5.4.110.0040.01611.62
5.4.100.0040.01411.64
5.4.90.0060.01311.56
5.4.80.0040.01511.55
5.4.70.0020.01611.55
5.4.60.0040.01511.61
5.4.50.0090.01011.58
5.4.40.0060.01211.56
5.4.30.0070.01211.61
5.4.20.0050.01411.55
5.4.10.0040.01311.61
5.4.00.0060.01011.44
5.3.290.0050.02111.85
5.3.280.0080.01911.80
5.3.270.0060.02011.81
5.3.260.0050.02611.81
5.3.250.0050.02111.81
5.3.240.0030.02611.81
5.3.230.0030.02211.80
5.3.220.0050.02311.79
5.3.210.0040.02411.79
5.3.200.0040.02011.79
5.3.190.0060.02011.79
5.3.180.0050.02211.79
5.3.170.0060.01911.79
5.3.160.0060.02111.79
5.3.150.0030.02211.79
5.3.140.0060.02111.78
5.3.130.0050.02111.78
5.3.120.0070.02111.78
5.3.110.0050.02411.78
5.3.100.0020.02611.51
5.3.90.0040.02311.49
5.3.80.0050.02111.48
5.3.70.0060.02211.49
5.3.60.0040.02311.48
5.3.50.0040.02211.45
5.3.40.0070.01911.45
5.3.30.0020.02711.42
5.3.20.0030.02211.31
5.3.10.0050.01911.29
5.3.00.0040.02211.29
5.2.170.0040.01810.04
5.2.160.0060.01510.04
5.2.150.0040.01610.04
5.2.140.0050.01810.04
5.2.130.0050.01610.02
5.2.120.0060.01510.02
5.2.110.0020.02010.02
5.2.100.0050.01510.02
5.2.90.0050.02110.02
5.2.80.0070.01410.02
5.2.70.0060.01710.02
5.2.60.0070.02510.00
5.2.50.0050.0239.98
5.2.40.0030.0189.97
5.2.30.0040.0209.96
5.2.20.0090.0149.95
5.2.10.0020.0199.91
5.2.00.0030.0189.84
5.1.60.0040.0189.48
5.1.50.0030.0189.48
5.1.40.0040.0169.47
5.1.30.0050.0179.65
5.1.20.0040.0149.66
5.1.10.0020.0189.52
5.1.00.0040.0159.52
5.0.50.0020.0158.76
5.0.40.0020.0138.69
5.0.30.0040.0178.60
5.0.20.0020.0138.58
5.0.10.0030.0138.57
5.0.00.0060.0168.57
4.4.90.0030.0127.84
4.4.80.0020.0117.83
4.4.70.0010.0127.83
4.4.60.0040.0127.83
4.4.50.0040.0097.83
4.4.40.0020.0197.80
4.4.30.0020.0107.83
4.4.20.0040.0087.87
4.4.10.0040.0097.87
4.4.00.0020.0157.83
4.3.110.0020.0117.78
4.3.100.0060.0067.78
4.3.90.0030.0077.76
4.3.80.0020.0187.74
4.3.70.0060.0107.77
4.3.60.0030.0107.76
4.3.50.0050.0127.76
4.3.40.0050.0147.72
4.3.30.0020.0127.10
4.3.20.0070.0097.09
4.3.10.0050.0107.06
4.3.00.0050.01012.42

preferences:
36.13 ms | 401 KiB | 5 Q