3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = trim('00'); 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)
8.3.60.0210.00018.45
8.3.50.0120.00421.97
8.3.40.0040.01118.67
8.3.30.0130.00620.17
8.3.20.0070.00020.48
8.3.10.0060.00321.96
8.3.00.0050.00322.45
8.2.180.0110.00716.32
8.2.170.0130.00322.96
8.2.160.0100.00618.82
8.2.150.0000.00924.18
8.2.140.0040.00424.66
8.2.130.0000.00926.16
8.2.120.0070.00021.03
8.2.110.0100.00022.13
8.2.100.0110.00019.45
8.2.90.0030.00619.17
8.2.80.0070.00019.25
8.2.70.0000.00917.38
8.2.60.0000.00818.04
8.2.50.0090.00018.07
8.2.40.0070.00318.16
8.2.30.0060.00618.07
8.2.20.0070.00017.65
8.2.10.0040.00417.68
8.2.00.0070.00017.67
8.1.280.0150.00025.92
8.1.270.0070.00024.66
8.1.260.0080.00026.35
8.1.250.0070.00028.09
8.1.240.0030.00523.99
8.1.230.0030.00719.12
8.1.220.0060.00317.74
8.1.210.0000.00818.77
8.1.200.0060.00317.35
8.1.190.0000.00817.53
8.1.180.0030.00519.01
8.1.170.0060.00318.48
8.1.160.0040.00422.05
8.1.150.0100.00018.68
8.1.140.0080.00017.32
8.1.130.0030.00317.78
8.1.120.0030.00317.35
8.1.110.0040.00417.48
8.1.100.0040.00417.49
8.1.90.0040.00417.33
8.1.80.0000.00717.41
8.1.70.0000.00717.34
8.1.60.0000.00917.63
8.1.50.0000.00817.54
8.1.40.0000.00717.55
8.1.30.0060.00317.65
8.1.20.0050.00517.64
8.1.10.0040.00417.38
8.1.00.0040.00417.33
8.0.300.0070.00018.77
8.0.290.0040.00417.18
8.0.280.0040.00418.47
8.0.270.0000.00717.18
8.0.260.0030.00316.70
8.0.250.0000.00716.89
8.0.240.0050.00316.96
8.0.230.0030.00316.94
8.0.220.0070.00016.85
8.0.210.0030.00316.88
8.0.200.0030.00616.96
8.0.190.0000.00716.83
8.0.180.0080.00016.91
8.0.170.0040.00416.86
8.0.160.0040.00416.84
8.0.150.0000.00716.81
8.0.140.0000.00716.78
8.0.130.0060.00013.30
8.0.120.0040.00416.86
8.0.110.0070.00016.79
8.0.100.0070.00016.95
8.0.90.0040.00416.67
8.0.80.0040.01116.93
8.0.70.0040.00417.01
8.0.60.0040.00416.89
8.0.50.0040.00416.77
8.0.30.0090.01117.18
8.0.20.0110.00817.40
8.0.10.0040.00416.89
8.0.00.0150.00616.74
7.4.330.0000.00515.00
7.4.320.0040.00416.51
7.4.300.0030.00316.55
7.4.290.0060.00016.52
7.4.280.0040.00416.50
7.4.270.0000.00716.61
7.4.260.0030.00616.47
7.4.250.0030.00516.55
7.4.240.0060.00216.59
7.4.230.0070.00016.59
7.4.220.0040.01416.55
7.4.210.0100.00616.54
7.4.200.0040.00416.50
7.4.190.0030.00316.59
7.4.160.0040.01716.48
7.4.150.0090.00917.40
7.4.140.0100.00817.86
7.4.130.0120.00716.42
7.4.120.0080.00816.60
7.4.110.0040.01316.66
7.4.100.0120.00616.49
7.4.90.0150.00416.59
7.4.80.0130.00519.39
7.4.70.0150.00316.38
7.4.60.0100.00616.53
7.4.50.0030.00616.53
7.4.40.0080.00822.77
7.4.30.0060.00916.60
7.4.00.0040.01114.93
7.3.330.0060.00013.19
7.3.320.0040.00413.25
7.3.310.0030.00316.20
7.3.300.0000.00616.25
7.3.290.0030.01216.16
7.3.280.0060.01216.26
7.3.270.0160.00017.40
7.3.260.0030.01316.32
7.3.250.0080.01016.27
7.3.240.0060.01116.30
7.3.230.0130.00316.39
7.3.210.0090.00916.57
7.3.200.0180.00419.39
7.3.190.0130.00716.23
7.3.180.0080.00816.46
7.3.170.0130.00316.30
7.3.160.0060.01016.42
7.3.120.0140.00014.82
7.3.00.0050.00816.50
7.2.330.0030.01516.74
7.2.320.0110.00616.72
7.2.310.0140.00316.68
7.2.300.0060.00916.60
7.2.290.0100.01016.62
7.2.130.0030.00616.59
7.2.120.0070.00716.86
7.2.110.0070.00716.58
7.2.100.0070.01016.86
7.2.90.0090.00916.96
7.2.80.0140.00016.80
7.2.70.0070.00717.14
7.2.60.0150.00016.85
7.2.50.0090.00616.98
7.2.40.0060.00916.97
7.2.30.0090.00616.95
7.2.20.0030.00716.67
7.2.10.0110.00016.88
7.2.00.0030.01418.18
7.1.250.0060.00315.48
7.1.240.0000.01315.54
7.1.230.0050.00515.82
7.1.220.0070.00415.47
7.1.210.0060.00615.66
7.1.200.0060.00615.59
7.1.190.0080.00615.68
7.1.180.0070.00715.48
7.1.170.0060.00915.80
7.1.160.0070.00715.63
7.1.150.0000.01615.46
7.1.140.0000.01415.78
7.1.130.0030.00515.73
7.1.120.0040.00815.54
7.1.110.0130.00715.71
7.1.100.0030.00816.74
7.1.90.0070.00715.86
7.1.80.0070.01015.74
7.1.70.0040.00616.45
7.1.60.0050.01217.63
7.1.50.0100.01016.33
7.1.40.0130.00015.54
7.1.30.0030.00915.63
7.1.20.0070.00715.83
7.1.10.0090.00615.80
7.1.00.0040.02019.04
7.0.330.0040.01115.45
7.0.320.0000.00815.36
7.0.310.0040.00815.38
7.0.300.0030.00615.18
7.0.290.0100.01015.37
7.0.280.0000.01515.19
7.0.270.0070.00715.20
7.0.260.0030.00915.31
7.0.250.0060.00615.59
7.0.240.0070.00715.38
7.0.230.0130.00315.45
7.0.220.0040.01115.31
7.0.210.0060.00615.11
7.0.200.0150.00614.84
7.0.190.0060.00315.43
7.0.180.0060.00615.33
7.0.170.0040.01115.42
7.0.160.0040.00815.55
7.0.150.0080.00415.18
7.0.140.0030.04118.72
7.0.130.0040.00415.45
7.0.120.0100.00315.11
7.0.110.0040.00815.30
7.0.100.0060.00615.35
7.0.90.0060.01015.35
7.0.80.0060.00615.15
7.0.70.0070.00715.12
7.0.60.0000.03017.68
7.0.50.0140.02916.61
7.0.40.0050.02616.84
7.0.30.0170.03516.89
7.0.20.0210.03616.62
7.0.10.0070.04016.78
7.0.00.0120.04216.76
5.6.380.0060.00913.96
5.6.370.0040.01114.48
5.6.360.0070.00714.13
5.6.350.0090.00614.29
5.6.340.0030.00614.12
5.6.330.0060.00614.12
5.6.320.0120.00314.04
5.6.310.0040.00813.94
5.6.300.0040.00914.42
5.6.290.0060.00314.25
5.6.280.0030.04117.57
5.6.270.0000.01014.26
5.6.260.0000.01314.00
5.6.250.0030.01014.05
5.6.240.0090.00614.54
5.6.230.0070.00714.02
5.6.220.0110.00414.15
5.6.210.0070.04417.52
5.6.200.0050.02516.04
5.6.190.0130.03817.33
5.6.180.0220.04017.46
5.6.170.0140.04217.34
5.6.160.0080.03117.43
5.6.150.0070.04116.22
5.6.140.0020.02916.16
5.6.130.0060.03516.10
5.6.120.0030.03217.68
5.6.110.0120.03217.62
5.6.100.0070.04517.61
5.6.90.0050.03417.57
5.6.80.0030.02517.18
5.6.70.0060.00914.44
5.6.60.0030.00914.08
5.6.50.0030.00814.12
5.6.40.0090.00014.50
5.6.30.0040.01214.33
5.6.20.0070.00314.21
5.6.10.0090.00614.20
5.6.00.0000.01214.25
5.5.380.0030.00610.92
5.5.370.0050.00011.05
5.5.360.0040.00411.27
5.5.350.0180.04015.80
5.5.340.0090.02714.62
5.5.330.0050.02215.67
5.5.320.0020.02815.53
5.5.310.0060.02615.61
5.5.300.0030.02214.58
5.5.290.0060.04314.46
5.5.280.0030.03115.84
5.5.270.0080.04215.94
5.5.260.0050.02815.72
5.5.250.0060.04315.73
5.5.240.2110.02115.48
5.5.230.0030.01010.92
5.5.220.0030.00310.82
5.5.210.0000.00710.92
5.5.200.0070.00411.19
5.5.190.0030.00911.09
5.5.180.0000.00810.73
5.5.170.0000.00610.83
5.5.160.0060.00311.16
5.5.150.0000.00911.11
5.5.140.0000.01211.04
5.5.130.0000.01110.82
5.5.120.0060.00610.79
5.5.110.0000.00610.94
5.5.100.0030.00610.54
5.5.90.0030.00611.09
5.5.80.0030.00310.59
5.5.70.0070.00011.08
5.5.60.0060.00611.04
5.5.50.0050.00511.13
5.5.40.0080.00310.66
5.5.30.0050.00510.78
5.5.20.0030.00611.10
5.5.10.0000.01010.78
5.5.00.0030.00310.87
5.4.450.0080.03115.19
5.4.440.0100.02515.14
5.4.430.0060.04115.08
5.4.420.0030.04315.05
5.4.410.0020.03615.19
5.4.400.0060.03314.96
5.4.390.0020.04515.13
5.4.380.0040.04015.05
5.4.370.0130.01815.10
5.4.360.0050.04215.05
5.4.350.0040.03414.85
5.4.340.0060.03215.03
5.4.330.0070.00310.98
5.4.320.0020.04814.99
5.4.310.0050.02714.87
5.4.300.0020.02714.93
5.4.290.0120.02015.16
5.4.280.0030.04014.99
5.4.270.0050.03915.04
5.4.260.0050.02215.06
5.4.250.0000.04314.68
5.4.240.0040.03015.04
5.4.230.0030.03514.80
5.4.220.0040.04014.94
5.4.210.0030.04214.92
5.4.200.0020.04114.74
5.4.190.0050.02314.86
5.4.180.0030.03714.96
5.4.170.0060.03815.00
5.4.160.0030.04014.97
5.4.150.0030.04114.80
5.4.140.0030.03313.71
5.4.130.0040.02913.54
5.4.120.0030.02613.63
5.4.110.0030.02813.68
5.4.100.0020.03613.56
5.4.90.0020.03513.64
5.4.80.0100.02513.65
5.4.70.0030.03013.63
5.4.60.0020.02813.68
5.4.50.0020.02413.60
5.4.40.0030.04213.57
5.4.30.0040.03913.60
5.4.20.0090.02813.69
5.4.10.0030.03613.45
5.4.00.0070.03013.41
5.3.290.0060.03812.63
5.3.280.0050.02312.39
5.3.270.0020.04412.57
5.3.260.0030.03812.50
5.3.250.0050.03412.61
5.3.240.0020.03912.48
5.3.230.0020.04212.45
5.3.220.0010.02812.36
5.3.210.0020.04012.33
5.3.200.0060.02512.30
5.3.190.0060.03712.38
5.3.180.0050.02612.47
5.3.170.0020.02912.35
5.3.160.0050.03712.52
5.3.150.0080.02612.46
5.3.140.0070.02212.44
5.3.130.0060.03712.39
5.3.120.0080.03812.55
5.3.110.0020.04412.45
5.3.100.0030.04012.26
5.3.90.0020.02512.29
5.3.80.0020.03712.27
5.3.70.0030.03812.17
5.3.60.0040.03612.40
5.3.50.0030.03812.22
5.3.40.0010.03812.21
5.3.30.0030.04012.19
5.3.20.0030.03712.32
5.3.10.0020.03712.15
5.3.00.0050.02512.16
5.2.170.0050.03411.89
5.2.160.0040.02611.82
5.2.150.0010.03611.89
5.2.140.0080.02511.82
5.2.130.0020.03111.82
5.2.120.0030.03211.83
5.2.110.0040.03211.86
5.2.100.0030.01911.88
5.2.90.0040.01711.82
5.2.80.0030.02111.82
5.2.70.0020.03011.82
5.2.60.0020.03511.82
5.2.50.0060.03111.82
5.2.40.0050.02011.82
5.2.30.0030.03511.82
5.2.20.0000.02511.82
5.2.10.0060.03011.82
5.2.00.0020.02811.82
5.1.60.0020.02511.82
5.1.50.0030.03011.82
5.1.40.0000.02611.82
5.1.30.0020.02711.82
5.1.20.0030.02311.82
5.1.10.0050.02711.82
5.1.00.0010.02311.82
5.0.50.0050.01711.82
5.0.40.0050.01611.82
5.0.30.0030.03111.82
5.0.20.0050.02011.82
5.0.10.0020.02411.82
5.0.00.0030.03511.82
4.4.90.0010.01811.82
4.4.80.0030.01711.82
4.4.70.0020.01711.82
4.4.60.0030.01811.82
4.4.50.0040.01711.82
4.4.40.0030.02811.82
4.4.30.0050.01511.82
4.4.20.0030.01911.82
4.4.10.0030.01811.82
4.4.00.0030.01811.82
4.3.110.0050.01011.82
4.3.100.0000.02111.82
4.3.90.0030.01311.82
4.3.80.0030.01811.82
4.3.70.0030.01811.82
4.3.60.0020.02011.82
4.3.50.0020.01611.82
4.3.40.0010.02111.82
4.3.30.0010.01611.82
4.3.20.0000.01611.82
4.3.10.0030.01011.82
4.3.00.0020.01011.82

preferences:
74.59 ms | 401 KiB | 5 Q