3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = [ '', 3445, '', 3446, '', 3452, '', 3530, 3555, ]; $str = serialize($arr); echo $str; // a:9:{i:0;s:0:"";i:1;i:3445;i:2;s:0:"";i:3;i:3446;i:4;s:0:"";i:5;i:3452;i:6;s:0:"";i:7;i:3530;i:8;i:3555;} echo PHP_EOL; $arr = unserialize($str); print_r($arr); // Array ( [0] => [1] => 3445 [2] => [3] => 3446 [4] => [5] => 3452 [6] => [7] => 3530 [8] => 3555 ) echo PHP_EOL; $arrayLen = count($arr); echo 'array length : ' . $arrayLen; // 9 echo PHP_EOL; // return index of value $needle = 3452; $index = array_search($needle, $arr); echo 'found value ' . $needle . ' at index : ' . $index; // found value 3452 at index 5 echo PHP_EOL; // Count only non empty array entries $arrNonEmpty = array_filter($arr, function($element) { return !empty($element); }); $count = count($arrNonEmpty); echo 'non empty values in array : ' . $count; echo PHP_EOL; print_r($arrNonEmpty); // rebase array indices $arrNonEmpty = array_values($arrNonEmpty); echo 'rebased indices:' . PHP_EOL; print_r($arrNonEmpty);

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)
8.4.120.0060.00424.40
8.4.110.0120.00722.25
8.4.100.0100.01218.80
8.4.90.0140.00618.58
8.4.80.0130.00717.83
8.4.70.0140.00617.83
8.4.60.0050.00418.95
8.4.50.0080.01024.13
8.4.40.0040.00418.69
8.4.30.0060.01320.18
8.4.20.0040.01418.03
8.4.10.0040.00419.34
8.3.250.0120.00618.97
8.3.240.0090.01017.36
8.3.230.0110.01116.69
8.3.220.0100.00818.76
8.3.210.0050.00316.60
8.3.200.0050.00416.78
8.3.190.0090.01318.96
8.3.180.0120.00716.63
8.3.170.0030.00720.70
8.3.160.0130.00617.15
8.3.150.0100.01017.02
8.3.140.0070.01016.40
8.3.130.0030.00616.65
8.3.120.0070.00318.51
8.3.110.0030.00516.67
8.3.100.0040.00416.62
8.3.90.0040.00426.77
8.3.80.0090.00016.38
8.3.70.0110.00416.58
8.3.60.0110.01118.43
8.3.50.0150.00723.48
8.3.40.0090.00921.82
8.3.30.0110.01118.72
8.3.20.0070.00024.18
8.3.10.0070.00024.66
8.3.00.0040.00426.16
8.2.290.0140.00520.30
8.2.280.0060.00518.36
8.2.270.0140.00417.24
8.2.260.0050.00316.52
8.2.250.0130.00718.05
8.2.240.0100.00616.96
8.2.230.0080.00020.94
8.2.220.0060.00324.06
8.2.210.0110.00326.77
8.2.200.0060.00316.25
8.2.190.0130.00316.58
8.2.180.0100.00725.92
8.2.170.0090.00618.83
8.2.160.0100.00722.96
8.2.150.0040.00425.66
8.2.140.0000.00824.66
8.2.130.0070.00026.16
8.2.120.0040.00420.79
8.2.110.0060.00319.10
8.2.100.0000.01117.78
8.2.90.0050.00318.03
8.2.80.0000.00818.77
8.2.70.0050.00317.38
8.2.60.0050.00517.93
8.2.50.0000.00918.07
8.2.40.0080.00018.16
8.2.30.0030.00618.00
8.2.20.0040.00417.95
8.2.10.0070.00019.30
8.2.00.0070.00019.29
8.1.330.0090.00921.89
8.1.320.0100.00816.11
8.1.310.0080.00816.50
8.1.300.0070.00416.67
8.1.290.0060.00330.84
8.1.280.0110.01125.92
8.1.270.0030.01223.96
8.1.260.0030.00626.35
8.1.250.0040.00428.09
8.1.240.0130.00022.07
8.1.230.0090.00322.68
8.1.220.0030.00517.74
8.1.210.0050.00319.03
8.1.200.0000.00917.35
8.1.190.0030.00617.48
8.1.180.0030.00618.10
8.1.170.0040.00418.55
8.1.160.0030.00518.81
8.1.150.0070.00318.89
8.1.140.0000.00720.67
8.1.130.0030.00320.14
8.1.120.0050.00317.46
8.1.110.0000.00817.34
8.1.100.0070.00017.43
8.1.90.0040.00417.45
8.1.80.0000.00917.45
8.1.70.0000.00817.50
8.1.60.0000.00817.46
8.1.50.0050.00317.41
8.1.40.0050.00317.51
8.1.30.0060.00317.55
8.1.20.0040.00417.55
8.1.10.0040.00417.48
8.1.00.0000.00717.48
8.0.300.0040.00419.89
8.0.290.0080.00016.75
8.0.280.0030.00318.31
8.0.270.0000.00817.94
8.0.260.0060.00018.57
8.0.250.0000.00616.98
8.0.240.0050.00217.03
8.0.230.0030.00317.03
8.0.220.0040.00416.95
8.0.210.0020.00516.87
8.0.200.0040.00416.96
8.0.190.0080.00016.90
8.0.180.0000.00716.96
8.0.170.0000.00916.95
8.0.160.0040.00416.95
8.0.150.0000.00816.85
8.0.140.0040.00416.80
8.0.130.0060.00013.34
8.0.120.0040.00416.82
8.0.110.0000.00716.89
8.0.100.0040.00416.95
8.0.90.0000.00716.90
8.0.80.0060.01216.91
8.0.70.0070.00016.98
8.0.60.0050.00216.79
8.0.50.0030.00516.99
8.0.30.0070.01017.19
8.0.20.0110.00917.11
8.0.10.0050.00216.89
8.0.00.0090.00916.95
7.4.330.0020.00215.55
7.4.320.0000.00616.53
7.4.300.0000.00616.48
7.4.290.0000.00816.57
7.4.280.0000.00916.58
7.4.270.0000.00716.60
7.4.260.0030.00313.26
7.4.250.0000.00716.57
7.4.240.0000.00816.54
7.4.230.0030.00316.50
7.4.220.0050.00316.47
7.4.210.0100.00816.57
7.4.200.0040.00416.34
7.4.130.0090.00916.52
7.4.120.0390.01516.32
7.4.110.0130.00316.26
7.4.100.0200.00516.43
7.4.90.0080.01216.49
7.4.80.0100.00716.31
7.4.70.0100.00916.41
7.4.60.0110.01416.43
7.4.50.0080.00816.23
7.4.40.0100.01016.17
7.4.30.0110.00716.24
7.4.20.0080.01116.20
7.4.10.0070.01116.24
7.4.00.0120.01216.57
7.3.330.0030.00416.16
7.3.320.0050.00013.32
7.3.310.0040.00416.18
7.3.300.0040.00416.32
7.3.290.0090.00616.33
7.3.260.0170.00016.50
7.3.240.0120.00416.10
7.3.230.0110.00916.26
7.3.220.0140.00516.40
7.3.210.0040.01716.12
7.3.200.0090.00916.42
7.3.190.0100.01316.12
7.3.180.0100.01316.14
7.3.170.0130.00416.27
7.3.160.0040.01516.35
7.3.150.0040.01716.54
7.3.140.0160.00316.35
7.3.130.0090.01216.19
7.3.120.0060.01216.51
7.3.110.0060.01116.33
7.3.100.0140.00716.42
7.3.90.0090.00616.43
7.3.80.0040.01316.68
7.3.70.0070.01416.39
7.3.60.0060.01616.39
7.3.50.0130.01016.33
7.3.40.0090.00916.31
7.3.30.0130.00616.49
7.3.20.0160.01616.42
7.3.10.0110.00816.31
7.3.00.0080.01616.32
7.2.340.0060.01216.82
7.2.330.0070.01116.75
7.2.320.0120.00616.78
7.2.310.0100.01016.58
7.2.300.0190.00416.80
7.2.290.0090.00916.38
7.2.280.0070.01016.56
7.2.270.0110.00716.70
7.2.260.0100.01016.63
7.2.250.0070.01116.82
7.2.240.0160.01316.35
7.2.230.0200.00316.76
7.2.220.0070.01116.54
7.2.210.0100.00816.68
7.2.200.0150.00916.68
7.2.190.0090.01416.50
7.2.180.0030.01716.66
7.2.170.0120.00616.60
7.2.160.0120.00916.71
7.2.150.0140.00616.76
7.2.140.0160.00816.67
7.2.130.0090.00916.71
7.2.120.0080.01216.78
7.2.110.0130.00616.77
7.2.100.0140.00416.64
7.2.90.0040.01416.66
7.2.80.0080.01116.64
7.2.70.0100.01316.70
7.2.60.0140.00716.68
7.2.50.0210.00016.80
7.2.40.0110.00716.74
7.2.30.0170.00316.70
7.2.20.0230.00716.66
7.2.10.0090.00916.71
7.2.00.0170.00316.75

preferences:
27.61 ms | 403 KiB | 5 Q