3v4l.org

run code in 300+ PHP versions simultaneously
<?PHP class cat { public function show_output($prepend, $output = '') {echo $prepend . $output;} public function show_out($output) {echo $output;} } $cat = new cat(); $cat->show_output('Files: ', trim(`ls`)); // this gives invalid args to shell_exec $cat->show_output('Files: ', `ls`); // this causes a segmentation fault $cat->show_out(`ls`); // this causes a segmentation fault function show_outputa($prepend, $output) {echo $prepend . $output;} show_outputa('Files: ', `ls`); // this works as expected

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)
8.3.40.0100.00818.65
8.3.30.0040.01118.73
8.3.20.0040.00518.60
8.3.10.0040.00518.63
8.3.00.0060.00319.38
8.2.170.0060.01022.96
8.2.160.0100.00718.83
8.2.150.0090.00024.18
8.2.140.0040.00524.66
8.2.130.0080.00026.16
8.2.120.0040.00420.94
8.2.110.0050.00622.33
8.2.100.0040.01117.91
8.2.90.0000.00817.73
8.2.80.0030.00618.78
8.2.70.0060.00317.50
8.2.60.0000.00917.93
8.2.50.0030.00618.07
8.2.40.0040.00420.07
8.2.30.0060.00417.83
8.2.20.0030.00917.63
8.2.10.0000.00817.82
8.2.00.0040.00517.80
8.1.270.0060.00423.99
8.1.260.0080.00026.35
8.1.250.0000.00828.09
8.1.240.0090.00018.97
8.1.230.0110.00017.77
8.1.220.0040.00517.74
8.1.210.0030.00618.77
8.1.200.0090.00017.35
8.1.190.0060.00717.22
8.1.180.0040.00418.10
8.1.170.0050.00318.88
8.1.160.0040.00419.14
8.1.150.0050.00318.62
8.1.140.0000.00917.39
8.1.130.0000.00817.95
8.1.120.0020.00517.54
8.1.110.0040.00417.31
8.1.100.0000.00717.37
8.1.90.0040.00417.51
8.1.80.0030.00617.48
8.1.70.0000.00717.50
8.1.60.0030.00717.73
8.1.50.0000.00817.52
8.1.40.0030.00617.62
8.1.30.0000.00917.69
8.1.20.0040.00817.55
8.1.10.0040.00417.67
8.1.00.0000.00817.46
8.0.300.0050.00318.77
8.0.290.0000.00816.75
8.0.280.0000.00818.63
8.0.270.0080.00017.30
8.0.260.0030.00416.88
8.0.250.0080.00017.04
8.0.240.0050.00317.01
8.0.230.0030.00416.96
8.0.220.0040.00416.99
8.0.210.0030.00416.95
8.0.200.0070.00017.03
8.0.190.0030.00617.01
8.0.180.0040.00816.98
8.0.170.0000.00916.88
8.0.160.0020.00517.00
8.0.150.0060.00316.90
8.0.140.0090.00416.80
8.0.130.0040.00313.34
8.0.120.0060.00316.93
8.0.110.0040.00416.82
8.0.100.0000.00816.82
8.0.90.0040.00416.94
8.0.80.0100.00716.95
8.0.70.0040.00416.81
8.0.60.0000.00916.98
8.0.50.0030.00616.90
8.0.30.0110.00817.02
8.0.20.0090.01117.04
8.0.10.0060.00317.07
8.0.00.0080.01316.82
7.4.330.0020.00312.96
7.4.320.0000.00716.53
7.4.300.0000.00716.51
7.4.290.0040.00416.63
7.4.280.0030.00616.52
7.4.270.0000.00816.42
7.4.260.0070.00013.26
7.4.250.0060.00316.44
7.4.240.0040.00416.58
7.4.230.0080.00016.45
7.4.220.0090.01016.69
7.4.210.0090.00716.50
7.4.200.0000.00816.67
7.4.190.0000.00716.57
7.4.160.0100.00816.40
7.4.150.0160.00516.55
7.4.140.0170.00816.57
7.4.130.0120.00716.65
7.4.120.0040.01416.57
7.4.110.0180.00816.50
7.4.100.0160.00516.57
7.4.90.0100.01116.49
7.4.80.0090.01019.39
7.4.70.0150.00416.27
7.4.60.0080.00916.45
7.4.50.0080.00016.32
7.4.40.0050.00916.39
7.4.30.0080.00916.27
7.4.00.0070.00514.92
7.3.330.0080.00013.43
7.3.320.0000.00713.31
7.3.310.0050.00316.46
7.3.300.0040.00416.24
7.3.290.0090.00816.41
7.3.280.0070.01216.36
7.3.270.0150.00816.39
7.3.260.0190.00516.56
7.3.250.0130.01016.58
7.3.240.0100.00816.34
7.3.230.0070.01516.40
7.3.210.0150.00416.56
7.3.200.0140.00516.34
7.3.190.0030.01516.49
7.3.180.0000.01716.53
7.3.170.0090.00716.44
7.3.160.0120.00716.49
7.3.120.0070.00914.93
7.2.330.0110.00916.91
7.2.320.0180.00716.52
7.2.310.0130.00716.45
7.2.300.0060.01316.70
7.2.290.0140.00516.82
7.2.00.0080.01219.52
7.1.100.0040.00817.68
7.1.70.0090.00717.16
7.1.60.0130.01719.30
7.1.50.0070.01516.96
7.1.00.0070.06722.46
7.0.200.0040.00516.61
7.0.140.0100.06722.09
7.0.120.0000.07022.12
7.0.60.0030.04019.85
7.0.50.0070.08317.73
7.0.40.0030.04720.21
7.0.30.0400.07320.30
7.0.20.0270.07020.05
7.0.10.0130.08020.24
7.0.00.0100.05020.14
5.6.280.0100.07021.11
5.6.210.0130.06320.77
5.6.200.0070.04318.26
5.6.190.0100.07020.49
5.6.180.0330.05020.61
5.6.170.0300.08020.46
5.6.160.0130.06720.54
5.6.150.0070.07018.31
5.6.140.0070.07018.21
5.6.130.0030.08718.21
5.6.120.0130.07720.98
5.6.110.0100.08721.00
5.6.100.0100.03721.00
5.6.90.0100.04321.01
5.6.80.0170.07720.32
5.5.350.0130.07320.39
5.5.340.0100.07718.07
5.5.330.0030.08720.27
5.5.320.0100.07320.51
5.5.310.0200.05320.38
5.5.300.0070.04018.09
5.5.290.0070.08718.12
5.5.280.0070.08020.91
5.5.270.0100.07720.99
5.5.260.0070.04720.80
5.5.250.0130.07020.65
5.5.240.0270.04020.13
5.4.450.0030.08019.48
5.4.440.0070.07319.33
5.4.430.0100.06319.56
5.4.420.0200.05319.44
5.4.410.0100.04319.38
5.4.400.0030.05719.13
5.4.390.0070.07019.09
5.4.380.0070.07718.94
5.4.370.0200.03719.14
5.4.360.0030.06018.92
5.4.350.0030.04319.15
5.4.340.0000.06319.17
5.4.320.0130.05019.14
5.4.310.0070.08018.89
5.4.300.0230.05719.08
5.4.290.0030.04018.91
5.4.280.0100.07318.94
5.4.270.0100.04719.14
5.4.260.0070.04019.14
5.4.250.0070.04018.86
5.4.240.0030.05318.91
5.4.230.0030.06319.14
5.4.220.0000.04718.86
5.4.210.0070.06018.97
5.4.200.0100.04319.14
5.4.190.0030.04318.87
5.4.180.0170.03018.91
5.4.170.0000.05719.15
5.4.160.0100.03319.13
5.4.150.0070.05318.90
5.4.140.0100.04016.47
5.4.130.0070.04716.38
5.4.120.0000.04316.33
5.4.110.0030.04016.58
5.4.100.0070.03716.58
5.4.90.0070.05016.58
5.4.80.0130.07316.55
5.4.70.0130.05316.53
5.4.60.0100.03016.45
5.4.50.0070.07716.49
5.4.40.0030.04316.42
5.4.30.0030.08016.31
5.4.20.0130.07016.40
5.4.10.0000.08316.55
5.4.00.0130.06015.87
5.3.290.0070.07014.74
5.3.280.0070.04014.50
5.3.270.0070.04014.64
5.3.260.0100.06714.63
5.3.250.0070.07314.63
5.3.240.0030.04014.50
5.3.230.0070.03714.77
5.3.220.0070.05714.73
5.3.210.0000.05314.61
5.3.200.0170.05314.63
5.3.190.0100.07714.65
5.3.180.0030.05314.57
5.3.170.0100.04314.72
5.3.160.0100.07014.73
5.3.150.0070.06314.56
5.3.140.0130.06014.56
5.3.130.0130.07314.55
5.3.120.0070.04314.61
5.3.110.0100.06714.56
5.3.100.0100.07014.08
5.3.90.0130.06014.10
5.3.80.0100.06314.02
5.3.70.0030.04014.07
5.3.60.0030.07714.05
5.3.50.0070.05713.96
5.3.40.0030.05014.02
5.3.30.0070.06713.88
5.3.20.0030.04313.79
5.3.10.0070.06013.82
5.3.00.0070.07313.70
5.2.170.0000.04311.05
5.2.160.0030.06311.21
5.2.150.0030.04011.18
5.2.140.0100.03311.11
5.2.130.0070.02711.19
5.2.120.0030.05711.08
5.2.110.0070.06311.00
5.2.100.0030.06311.14
5.2.90.0100.03311.13
5.2.80.0070.04711.29
5.2.70.0030.03011.06
5.2.60.0030.03311.06
5.2.50.0170.03311.08
5.2.40.0100.04311.04
5.2.30.0070.03010.88
5.2.20.0070.06310.96
5.2.10.0030.05310.92
5.2.00.0130.05310.78
5.1.60.0070.03310.03
5.1.50.0030.0409.91
5.1.40.0130.04310.05
5.1.30.0030.03710.35
5.1.20.0100.05310.26
5.1.10.0100.04010.13
5.1.00.0030.03010.22
5.0.50.0000.0239.12
5.0.40.0000.0239.12
5.0.30.0000.0509.12
5.0.20.0030.0209.12
5.0.10.0100.0239.12
5.0.00.0000.0409.12
4.4.90.0000.0409.12
4.4.80.0030.0239.12
4.4.70.0030.0139.12
4.4.60.0000.0409.12
4.4.50.0030.0279.12
4.4.40.0030.0309.12
4.4.30.0000.0339.12
4.4.20.0070.0339.12
4.4.10.0000.0209.12
4.4.00.0000.0479.12
4.3.110.0100.0279.12
4.3.100.0000.0209.12
4.3.90.0030.0309.12
4.3.80.0000.0539.12
4.3.70.0030.0339.12
4.3.60.0000.0239.12
4.3.50.0000.0209.12
4.3.40.0030.0439.12
4.3.30.0030.0339.12
4.3.20.0000.0309.12
4.3.10.0000.0309.12
4.3.00.0000.0379.12

preferences:
51.27 ms | 400 KiB | 5 Q