3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = trim('0'); echo $str . "\n"; if ($str) { echo "option 1: not empty\n"; } if (strlen($str)) { echo "option 2: not empty\n"; } if (!empty($str)) { echo "option 3: not empty\n"; } if ($str !== '') { echo "option 4: not empty\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)
8.3.40.0090.00618.80
8.3.30.0000.01420.30
8.3.20.0040.00420.39
8.3.10.0000.00822.13
8.3.00.0040.00422.48
8.2.170.0140.00422.96
8.2.160.0100.01022.12
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0040.00420.87
8.2.110.0050.00322.32
8.2.100.0060.00617.63
8.2.90.0000.00819.09
8.2.80.0070.00019.33
8.2.70.0080.00017.63
8.2.60.0070.00417.91
8.2.50.0040.00418.07
8.2.40.0040.00418.16
8.2.30.0050.00518.06
8.2.20.0060.00317.63
8.2.10.0040.00417.55
8.2.00.0000.00817.53
8.1.270.0070.01124.66
8.1.260.0080.00026.35
8.1.250.0000.00728.09
8.1.240.0060.00323.82
8.1.230.0120.00019.01
8.1.220.0030.00617.74
8.1.210.0050.00318.77
8.1.200.0060.00317.35
8.1.190.0040.00417.30
8.1.180.0000.00819.01
8.1.170.0040.00418.29
8.1.160.0080.00022.05
8.1.150.0060.00318.74
8.1.140.0000.00717.36
8.1.130.0020.00517.82
8.1.120.0050.00217.46
8.1.110.0050.00317.48
8.1.100.0000.00717.45
8.1.90.0040.00417.40
8.1.80.0050.00317.36
8.1.70.0070.00017.38
8.1.60.0060.00317.59
8.1.50.0000.00717.59
8.1.40.0040.00417.52
8.1.30.0040.00417.52
8.1.20.0000.00817.66
8.1.10.0080.00017.51
8.1.00.0060.00317.41
8.0.300.0060.00318.77
8.0.290.0040.00417.05
8.0.280.0030.00318.34
8.0.270.0070.00017.26
8.0.260.0030.00316.73
8.0.250.0000.00717.02
8.0.240.0030.00616.85
8.0.230.0000.00816.97
8.0.220.0030.00316.92
8.0.210.0000.00716.93
8.0.200.0000.00816.95
8.0.190.0000.00716.96
8.0.180.0000.00716.81
8.0.170.0000.00916.75
8.0.160.0030.00316.93
8.0.150.0000.00716.89
8.0.140.0050.00216.86
8.0.130.0070.00013.29
8.0.120.0050.00316.89
8.0.110.0040.00416.96
8.0.100.0030.00616.95
8.0.90.0000.00816.86
8.0.80.0060.00916.83
8.0.70.0030.00316.80
8.0.60.0000.00716.82
8.0.50.0040.00416.78
8.0.30.0070.01317.00
8.0.20.0140.00417.40
8.0.10.0000.00716.95
8.0.00.0080.01316.73
7.4.330.0020.00215.00
7.4.320.0030.00316.52
7.4.300.0030.00316.61
7.4.290.0040.00416.55
7.4.280.0070.00016.55
7.4.270.0000.00716.50
7.4.260.0030.00616.59
7.4.250.0030.00616.61
7.4.240.0030.00316.55
7.4.230.0030.00316.41
7.4.220.0140.00416.38
7.4.210.0060.00816.52
7.4.200.0030.00416.41
7.4.190.0000.00716.77
7.4.160.0110.00816.70
7.4.150.0110.00717.40
7.4.140.0110.00617.86
7.4.130.0110.00516.55
7.4.120.0110.00516.47
7.4.110.0030.01416.44
7.4.100.0100.00716.38
7.4.90.0170.00316.49
7.4.80.0130.00319.39
7.4.70.0100.01016.33
7.4.60.0120.00616.47
7.4.50.0040.00416.39
7.4.40.0070.01022.77
7.4.30.0040.01216.55
7.4.00.0140.00214.89
7.3.330.0000.00513.12
7.3.320.0060.00013.25
7.3.310.0000.00716.09
7.3.300.0070.00016.20
7.3.290.0090.00716.22
7.3.280.0110.00716.32
7.3.270.0100.00717.40
7.3.260.0120.01216.37
7.3.250.0110.00616.41
7.3.240.0140.00416.54
7.3.230.0030.01316.56
7.3.210.0000.01716.31
7.3.200.0060.01019.39
7.3.190.0190.00316.53
7.3.180.0110.00416.29
7.3.170.0090.01016.37
7.3.160.0140.00516.57
7.3.120.0040.01114.91
7.3.110.0030.01315.05
7.3.100.0080.00814.62
7.3.90.0030.00615.00
7.3.80.0080.00714.98
7.3.70.0060.00914.77
7.3.60.0000.00914.80
7.3.50.0000.01114.68
7.3.40.0060.00314.61
7.3.30.0070.00414.43
7.3.20.0120.00416.67
7.3.10.0000.01816.63
7.3.00.0070.00716.82
7.2.330.0100.01016.77
7.2.320.0120.00916.62
7.2.310.0130.01016.69
7.2.300.0030.01316.79
7.2.290.0130.00316.76
7.2.250.0110.00715.14
7.2.240.0080.00814.71
7.2.230.0140.00315.17
7.2.220.0000.00915.21
7.2.210.0040.01114.99
7.2.200.0040.01414.93
7.2.190.0070.00714.92
7.2.180.0070.00314.96
7.2.170.0030.01214.78
7.2.00.0100.00019.24
7.1.330.0040.01115.79
7.1.320.0070.00715.86
7.1.310.0080.00015.64
7.1.300.0080.00315.84
7.1.290.0000.01415.70
7.1.280.0030.01015.96
7.1.270.0110.00315.82
7.1.260.0040.01115.83
7.1.100.0040.00718.31
7.1.70.0050.00217.20
7.1.60.0100.01019.43
7.1.50.0070.01716.82
7.1.00.0070.06022.54
7.0.200.0240.00616.88
7.0.140.0030.07322.00
7.0.60.0030.07019.89
7.0.50.0100.05017.79
7.0.40.0100.06720.05
7.0.30.0230.04720.13
7.0.20.0170.09020.16
7.0.10.0270.07719.97
7.0.00.0100.04020.16
5.6.280.0070.07021.04
5.6.210.0030.04720.73
5.6.200.0030.08318.18
5.6.190.0070.04020.56
5.6.180.0270.07720.41
5.6.170.0170.04020.51
5.6.160.0100.05320.49
5.6.150.0000.07718.16
5.6.140.0030.08318.17
5.6.130.0130.05018.09
5.6.120.0100.08321.14
5.6.110.0100.06321.09
5.6.100.0100.08321.00
5.6.90.0070.03721.09
5.6.80.0000.04320.37
5.6.70.0270.08020.34
5.5.350.0030.08720.49
5.5.340.0070.08318.02
5.5.330.0030.05020.14
5.5.320.0200.06320.29
5.5.310.0330.05020.29
5.5.300.0170.07017.95
5.5.290.0030.07717.87
5.5.280.0100.08320.68
5.5.270.0100.06020.86
5.5.260.0170.05320.66
5.5.250.0200.05720.68
5.5.240.0200.07320.27
5.4.450.0200.04319.54
5.4.440.0170.04319.57
5.4.430.0230.03719.38
5.4.420.0170.04319.45
5.4.410.0170.04019.08
5.4.400.0200.03319.25
5.4.390.0200.03319.13
5.4.380.0170.03719.24
5.4.370.0230.03318.88
5.4.360.0200.04719.25
5.4.350.0230.03719.06
5.4.340.0170.04319.21
5.4.320.0230.03319.13
5.4.310.0270.03019.08
5.4.300.0230.05319.06
5.4.290.0230.05319.09
5.4.280.0400.06019.13
5.4.270.0400.05718.88
5.4.260.0200.08019.09
5.4.250.0200.05318.89
5.4.240.0170.05319.13
5.4.230.0370.06719.08
5.4.220.0330.06719.24
5.4.210.0330.06318.88
5.4.200.0300.04018.91
5.4.190.0400.05018.91
5.4.180.0330.06319.08
5.4.170.0330.05019.12
5.4.160.0300.07019.16
5.4.150.0270.07319.06
5.4.140.0230.04716.36
5.4.130.0370.05716.32
5.4.120.0270.05316.18
5.4.110.0300.06716.48
5.4.100.0300.05316.36
5.4.90.0330.06316.52
5.4.80.0300.06716.46
5.4.70.0600.05016.04
5.4.60.0270.05716.34
5.4.50.0270.04316.36
5.4.40.0270.03716.38
5.4.30.0200.04016.36
5.4.20.0370.06016.21
5.4.10.0270.06316.40
5.4.00.0300.07015.67
5.3.290.0170.03714.60
5.3.280.0270.04014.57
5.3.270.0270.07314.45
5.3.260.0430.03714.63
5.3.250.0270.06014.54
5.3.240.0330.03714.58
5.3.230.0330.07014.52
5.3.220.0370.06714.51
5.3.210.0300.07314.44
5.3.200.0330.05714.46
5.3.190.0370.06714.61
5.3.180.0300.05314.65
5.3.170.0300.06314.39
5.3.160.0300.07314.43
5.3.150.0370.06314.51
5.3.140.0300.04014.40
5.3.130.0470.05014.53
5.3.120.0300.07014.59
5.3.110.0370.06314.49
5.3.100.0300.06013.91
5.3.90.0300.04714.06
5.3.80.0300.07314.06
5.3.70.0270.04313.87
5.3.60.0230.05314.07
5.3.50.0300.05013.79
5.3.40.0270.04313.80
5.3.30.0370.06314.00
5.3.20.0270.04713.47
5.3.10.0430.05713.59
5.3.00.0270.03313.73
5.2.170.0300.05011.87
5.2.160.0230.05311.87
5.2.150.0200.03711.87
5.2.140.0230.05711.87
5.2.130.0170.03711.87
5.2.120.0200.04311.87
5.2.110.0300.02311.87
5.2.100.0170.03011.87
5.2.90.0230.05711.87
5.2.80.0230.06011.87
5.2.70.0230.05011.87
5.2.60.0230.04311.87
5.2.50.0270.05011.87
5.2.40.0230.05711.87
5.2.30.0170.04311.87
5.2.20.0170.05011.87
5.2.10.0230.04311.87
5.2.00.0230.05311.87
5.1.60.0200.04311.87
5.1.50.0200.03011.87
5.1.40.0230.04711.87
5.1.30.0330.04011.87
5.1.20.0270.04711.87
5.1.10.0170.05711.87
5.1.00.0200.04711.87
5.0.50.0100.04011.87
5.0.40.0100.03311.87
5.0.30.0100.06711.87
5.0.20.0100.04311.87
5.0.10.0200.03711.87
5.0.00.0130.03711.87
4.4.90.0130.03011.87
4.4.80.0130.03011.87
4.4.70.0170.01311.87
4.4.60.0100.03711.87
4.4.50.0130.03311.87
4.4.40.0100.03711.87
4.4.30.0070.02311.87
4.4.20.0100.02711.87
4.4.10.0100.03711.87
4.4.00.0130.05311.87
4.3.110.0170.03011.87
4.3.100.0070.02311.87
4.3.90.0130.02711.87
4.3.80.0070.05711.87
4.3.70.0130.02311.87
4.3.60.0100.03711.87
4.3.50.0130.02011.87
4.3.40.0130.04711.87
4.3.30.0030.02711.87
4.3.20.0070.03711.87
4.3.10.0070.03711.87
4.3.00.0070.04011.87

preferences:
45.16 ms | 400 KiB | 5 Q