3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var = (string)' '; if (empty($var)) { echo "empty\n\n";}else{ echo "not empty\n\n";} var_dump($var);

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)
8.3.40.0070.00718.54
8.3.30.0090.00618.96
8.3.20.0040.00420.22
8.3.10.0030.00521.96
8.3.00.0000.00822.49
8.2.170.0070.01322.96
8.2.160.0070.00719.26
8.2.150.0030.00524.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0040.00417.63
8.2.110.0070.00320.48
8.2.100.0120.00017.86
8.2.90.0040.00419.17
8.2.80.0080.00018.00
8.2.70.0040.00417.50
8.2.60.0050.00317.80
8.2.50.0000.00818.07
8.2.40.0030.00618.27
8.2.30.0000.01117.95
8.2.20.0040.00417.71
8.2.10.0050.00219.53
8.2.00.0030.00617.76
8.1.270.0030.00522.19
8.1.260.0040.00426.35
8.1.250.0030.00628.09
8.1.240.0030.00623.77
8.1.230.0090.00523.93
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0090.00017.23
8.1.190.0060.00317.53
8.1.180.0040.00418.10
8.1.170.0040.00418.53
8.1.160.0030.00721.91
8.1.150.0040.00418.57
8.1.140.0000.00717.32
8.1.130.0000.00717.80
8.1.120.0040.00417.40
8.1.110.0030.00317.43
8.1.100.0030.00317.31
8.1.90.0000.00717.28
8.1.80.0050.00317.41
8.1.70.0030.00317.38
8.1.60.0040.00417.47
8.1.50.0000.00717.35
8.1.40.0040.00417.44
8.1.30.0050.00217.55
8.1.20.0000.00817.54
8.1.10.0030.00617.59
8.1.00.0050.00217.49
8.0.300.0030.00318.77
8.0.290.0070.00017.18
8.0.280.0080.00018.43
8.0.270.0030.00317.17
8.0.260.0000.00616.81
8.0.250.0000.00616.82
8.0.240.0030.00316.88
8.0.230.0070.00016.81
8.0.220.0070.00016.74
8.0.210.0070.00016.91
8.0.200.0060.00016.93
8.0.190.0040.00416.96
8.0.180.0040.00416.88
8.0.170.0040.00416.80
8.0.160.0000.00816.77
8.0.150.0070.00016.79
8.0.140.0040.00416.85
8.0.130.0000.00513.27
8.0.120.0040.00416.73
8.0.110.0000.00716.71
8.0.100.0040.00416.77
8.0.90.0000.00716.82
8.0.80.0080.00916.84
8.0.70.0000.00716.83
8.0.60.0050.00216.95
8.0.50.0000.00816.97
8.0.30.0110.01116.97
8.0.20.0090.01117.40
8.0.10.0000.00716.95
8.0.00.0120.00716.74
7.4.330.0030.00315.02
7.4.320.0030.00316.45
7.4.300.0000.00716.45
7.4.290.0040.00416.54
7.4.280.0040.00416.44
7.4.270.0030.00316.56
7.4.260.0000.01116.34
7.4.250.0000.00716.41
7.4.240.0050.00216.36
7.4.230.0040.00416.44
7.4.220.0060.01716.43
7.4.210.0070.00816.47
7.4.200.0030.00316.56
7.4.190.0000.00816.30
7.4.160.0060.00916.45
7.4.150.0120.00617.40
7.4.140.0110.00817.86
7.4.130.0110.00816.39
7.4.120.0120.00916.51
7.4.110.0170.00016.29
7.4.100.0100.00716.43
7.4.90.0090.01116.45
7.4.80.0120.01219.39
7.4.70.0030.01416.47
7.4.60.0040.01316.20
7.4.50.0060.00316.36
7.4.40.0050.00522.77
7.4.30.0080.01216.29
7.4.00.0100.00714.73
7.3.330.0050.00213.07
7.3.320.0000.00513.13
7.3.310.0030.00316.09
7.3.300.0000.00716.23
7.3.290.0000.01416.16
7.3.280.0090.00916.22
7.3.270.0170.00017.40
7.3.260.0110.00516.25
7.3.250.0090.01116.34
7.3.240.0100.00716.43
7.3.230.0100.00616.39
7.3.210.0060.01216.08
7.3.200.0120.00919.39
7.3.190.0060.01216.34
7.3.180.0090.00616.46
7.3.170.0110.01116.27
7.3.160.0100.00616.38
7.3.120.0060.00914.73
7.2.330.0170.00016.46
7.2.320.0060.01616.60
7.2.310.0110.01116.67
7.2.300.0030.01416.50
7.2.290.0000.01716.33
7.2.80.0030.01016.43
7.2.60.0000.00916.79
7.2.50.0100.00316.89
7.1.200.0030.00915.25
7.1.70.0100.00316.74
7.1.60.0090.01519.82
7.1.50.0070.01117.03
7.1.00.0070.07322.54
7.0.200.0080.00516.79
7.0.140.0070.06322.07
7.0.60.0070.06719.86
7.0.50.0070.03717.78
7.0.40.0070.06720.06
7.0.30.0230.04320.09
7.0.20.0330.04720.01
7.0.10.0270.07720.13
7.0.00.0070.03719.99
5.6.280.0030.07320.98
5.6.210.0100.08020.53
5.6.200.0100.08718.20
5.6.190.0070.09020.56
5.6.180.3900.05020.41
5.6.170.0270.05020.45
5.6.160.0100.03320.44
5.6.150.0130.05718.20
5.6.140.0000.08318.18
5.6.130.0070.04718.16
5.6.120.0100.08021.00
5.6.110.0070.09021.11
5.6.100.0000.04320.97
5.6.90.0170.08021.10
5.6.80.0100.06720.50
5.6.70.0330.05320.45
5.5.350.0100.05020.46
5.5.340.0170.07317.88
5.5.330.0070.08020.24
5.5.320.0170.04720.32
5.5.310.0170.05720.20
5.5.300.0070.08317.88
5.5.290.0000.04318.00
5.5.280.0100.07320.86
5.5.270.0070.08320.76
5.5.260.0130.08020.87
5.5.250.0170.06020.77
5.5.240.0030.07020.34
5.4.450.0170.06019.10
5.4.440.0470.06719.32
5.4.430.0130.05319.35
5.4.420.0070.05719.52
5.4.410.0100.05319.14
5.4.400.0100.05318.78
5.4.390.0030.05718.65
5.4.380.0130.06018.49
5.4.370.0100.06018.68
5.4.360.0230.04718.51
5.4.350.0200.05018.68
5.4.340.0270.04318.69
5.4.320.0040.03812.45
5.4.310.0050.04412.45
5.4.300.0030.04012.45
5.4.290.0070.04312.45
5.4.280.0070.03412.34
5.4.110.0030.06716.30
5.4.100.0100.05716.61
5.4.90.0070.05316.55
5.4.80.0030.05316.57
5.4.70.0070.06716.58
5.4.60.0130.06016.51
5.4.50.0100.05316.55
5.4.40.0000.07016.38
5.4.30.0130.05316.59
5.4.20.0100.05316.48
5.4.10.0130.05316.51
5.4.00.0070.07016.07
5.3.290.0050.03912.80
5.3.220.0070.06714.51
5.3.210.0170.04714.68
5.3.200.0030.08014.55
5.3.190.0070.07014.55
5.3.180.0000.06314.62
5.3.170.0030.05314.71
5.3.160.0130.06314.37
5.3.150.0170.06314.75
5.3.140.0130.04314.53
5.3.130.0100.05314.60
5.3.120.0030.06014.68
5.3.110.0030.08314.60
5.3.100.0170.06014.07
5.3.90.0100.06713.94
5.3.80.0200.05713.95
5.3.70.0100.05314.18
5.3.60.0070.06714.05
5.3.50.0030.05014.09
5.3.40.0100.05314.04
5.3.30.0000.05713.89
5.3.20.0230.05013.67
5.3.10.0070.07713.63
5.3.00.0070.07313.72
5.2.170.0170.04011.07
5.2.160.0100.05311.12
5.2.150.0030.06011.09
5.2.140.0100.04311.35
5.2.130.0030.04311.20
5.2.120.0130.03710.91
5.2.110.0100.05311.21
5.2.100.0100.05311.07
5.2.90.0070.04711.20
5.2.80.0070.04711.33
5.2.70.0070.06011.23
5.2.60.0100.06011.25
5.2.50.0070.06011.17
5.2.40.0100.05010.80
5.2.30.0070.04710.87
5.2.20.0100.04011.10
5.2.10.0130.05011.13
5.2.00.0030.05710.84
5.1.60.0100.03710.19
5.1.50.0100.04310.19
5.1.40.0170.0379.95
5.1.30.0130.03710.37
5.1.20.0000.04710.39
5.1.10.0000.05310.34
5.1.00.0130.04710.14
5.0.50.0100.0378.83
5.0.40.0130.0308.60
5.0.30.0100.0508.24
5.0.20.0070.0308.23
5.0.10.0030.0308.44
5.0.00.0000.0478.38
4.4.90.0030.0305.91
4.4.80.0030.0305.92
4.4.70.0070.0205.91
4.4.60.0100.0235.91
4.4.50.0030.0305.85
4.4.40.0070.0405.80
4.4.30.0100.0175.88
4.4.20.0070.0275.96
4.4.10.0000.0375.86
4.4.00.0000.0475.94
4.3.110.0030.0305.80
4.3.100.0070.0235.95
4.3.90.0070.0205.70
4.3.80.0070.0305.82
4.3.70.0030.0235.82
4.3.60.0000.0305.79
4.3.50.0030.0235.93
4.3.40.0070.0335.73
4.3.30.0030.0204.54
4.3.20.0000.0274.54
4.3.10.0070.0204.57
4.3.00.0170.0207.38

preferences:
40.55 ms | 400 KiB | 5 Q