3v4l.org

run code in 300+ PHP versions simultaneously
<?php function isCorrect($string) { $wait = array(); for ($i = 0; $i < strlen($string); $i++) { if ($string[$i] == '{') { array_push($wait, '}'); } elseif ($string[$i] == '(') { array_push($wait, ')'); } elseif ($string[$i] == '}' && end($wait) == '}') { array_pop($wait); } elseif ($string[$i] == ')' && end($wait) == ')') { array_pop($wait); } elseif ($string[$i] == ')' || $string[$i] == '}') { return false; } } return empty($wait); } assert(isCorrect('') === true); assert(isCorrect('()') === true); assert(isCorrect('{()}') === true); assert(isCorrect('{()}{}') === true); assert(isCorrect('(())') === true); assert(isCorrect('{({({({()})})})}') === true); assert(isCorrect('{(})') === false);

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)
8.3.60.0100.01018.08
8.3.50.0090.00821.15
8.3.40.0120.00318.96
8.3.30.0140.00019.08
8.3.20.0050.00220.28
8.3.10.0070.00022.00
8.3.00.0040.00422.52
8.2.180.0040.01216.50
8.2.170.0060.01222.96
8.2.160.0110.00421.02
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0040.00419.48
8.2.110.0030.00622.17
8.2.100.0080.00419.76
8.2.90.0000.00819.19
8.2.80.0000.00819.89
8.2.70.0040.00417.48
8.2.60.0080.00418.05
8.2.50.0000.00818.07
8.2.40.0090.00018.22
8.2.30.0000.00918.15
8.2.20.0000.00817.69
8.2.10.0000.00819.45
8.2.00.0040.00417.71
8.1.280.0120.00925.92
8.1.270.0060.00322.01
8.1.260.0000.00826.35
8.1.250.0050.00328.09
8.1.240.0030.00623.77
8.1.230.0040.00719.16
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0030.00617.35
8.1.190.0030.00617.40
8.1.180.0000.00818.10
8.1.170.0040.00418.54
8.1.160.0020.00522.04
8.1.150.0030.00518.64
8.1.140.0070.00017.36
8.1.130.0070.00017.74
8.1.120.0050.00317.48
8.1.110.0050.00217.45
8.1.100.0050.00317.46
8.1.90.0030.00517.39
8.1.80.0000.00717.47
8.1.70.0030.00317.35
8.1.60.0070.00317.59
8.1.50.0030.00617.44
8.1.40.0000.00817.41
8.1.30.0050.00317.60
8.1.20.0040.00417.66
8.1.10.0050.00217.52
8.1.00.0040.00417.54
8.0.300.0040.00418.77
8.0.290.0060.00317.18
8.0.280.0000.00718.44
8.0.270.0030.00317.15
8.0.260.0050.00316.89
8.0.250.0060.00017.09
8.0.240.0070.00017.05
8.0.230.0030.00317.07
8.0.220.0030.00316.87
8.0.210.0000.00716.98
8.0.200.0040.00417.00
8.0.190.0040.00416.89
8.0.180.0070.00016.91
8.0.170.0000.00816.97
8.0.160.0000.00716.87
8.0.150.0000.00716.98
8.0.140.0040.00416.96
8.0.130.0000.00513.37
8.0.120.0030.00616.96
8.0.110.0000.00816.96
8.0.100.0000.00816.84
8.0.90.0050.00216.97
8.0.80.0060.00917.00
8.0.70.0060.00316.81
8.0.60.0040.00416.83
8.0.50.0040.00416.75
8.0.30.0050.01317.12
8.0.20.0100.00817.40
8.0.10.0040.00416.95
8.0.00.0130.00716.76
7.4.330.0020.00215.20
7.4.320.0030.00316.52
7.4.300.0080.00016.55
7.4.290.0000.00716.67
7.4.280.0030.00316.67
7.4.270.0050.00216.63
7.4.260.0000.00816.62
7.4.250.0040.00416.39
7.4.240.0040.00416.62
7.4.230.0000.00716.42
7.4.220.0160.00316.65
7.4.210.0080.00616.54
7.4.200.0040.00416.54
7.4.190.0000.00716.57
7.4.160.0060.00916.60
7.4.150.0070.01017.40
7.4.140.0120.00817.86
7.4.130.0080.00816.57
7.4.120.0090.00816.66
7.4.110.0090.00916.57
7.4.100.0110.00716.64
7.4.90.0090.00916.45
7.4.80.0090.00919.39
7.4.70.0080.00816.65
7.4.60.0100.00616.58
7.4.50.0000.00916.49
7.4.40.0090.00622.77
7.4.30.0060.00916.72
7.4.00.0070.01114.94
7.3.330.0000.00513.38
7.3.320.0040.00413.42
7.3.310.0030.00316.49
7.3.300.0070.00016.49
7.3.290.0060.01216.45
7.3.280.0040.01216.44
7.3.270.0070.01017.40
7.3.260.0100.00716.43
7.3.250.0090.01116.44
7.3.240.0130.01016.45
7.3.230.0140.00316.54
7.3.210.0060.01016.49
7.3.200.0030.01319.39
7.3.190.0060.01116.55
7.3.180.0110.00516.47
7.3.170.0160.00016.37
7.3.160.0030.01716.40
7.3.120.0070.00714.88
7.3.110.0070.00714.60
7.3.100.0040.00814.79
7.3.90.0090.00015.03
7.3.80.0090.00014.96
7.3.70.0070.01015.05
7.3.60.0030.00614.96
7.3.50.0050.00314.79
7.3.40.0100.00314.91
7.3.30.0110.00014.98
7.3.20.0040.00816.56
7.3.10.0070.00716.71
7.3.00.0040.01116.73
7.2.330.0150.00416.82
7.2.320.0100.01316.71
7.2.310.0130.00316.75
7.2.300.0030.01316.73
7.2.290.0140.00316.89
7.2.240.0000.01315.15
7.2.230.0110.00314.98
7.2.220.0070.00715.33
7.2.210.0090.00614.95
7.2.200.0000.00815.25
7.2.190.0070.00715.20
7.2.180.0030.01015.26
7.2.170.0060.01014.93
7.2.160.0040.00715.04
7.2.150.0140.00316.95
7.2.140.0070.00316.64
7.2.130.0000.01216.88
7.2.120.0040.00717.03
7.2.110.0040.01117.04
7.2.100.0070.01016.94
7.2.90.0140.00016.92
7.2.80.0100.00616.95
7.2.70.0030.01217.08
7.2.60.0030.00917.06
7.2.50.0000.01616.91
7.2.40.0090.00617.16
7.2.30.0040.01417.02
7.2.20.0040.00816.97
7.2.10.0040.01116.97
7.2.00.0080.00317.07
7.1.330.0030.00615.93
7.1.320.0110.00415.86
7.1.310.0060.00316.04
7.1.300.0100.00615.96
7.1.290.0040.01115.86
7.1.280.0040.00415.69
7.1.270.0050.00515.59
7.1.260.0060.00615.85
7.1.250.0040.01115.96
7.1.70.0060.00317.16
7.1.60.0100.01319.82
7.1.50.0130.00717.10
7.1.00.0100.06722.33
7.0.200.0120.00916.82
7.0.140.0070.06721.97
7.0.100.0170.07720.05
7.0.90.0200.06720.00
7.0.80.0200.06319.97
7.0.70.0130.07019.92
7.0.60.0100.08320.09
7.0.50.0000.07020.39
7.0.40.0070.07720.07
7.0.30.0130.07020.07
7.0.20.0030.05720.13
7.0.10.0200.07720.10
7.0.00.0100.07320.05
5.6.280.0030.07021.12
5.6.250.0000.08720.79
5.6.240.0070.07720.52
5.6.230.0130.07320.69
5.6.220.0100.08020.49
5.6.210.0030.04720.68
5.6.200.0030.09021.04
5.6.190.0070.08021.07
5.6.180.0030.07321.11
5.6.170.0030.05020.96
5.6.160.0100.03720.92
5.6.150.0100.07321.05
5.6.140.0070.08320.99
5.6.130.0070.07321.08
5.6.120.0070.07021.07
5.6.110.0100.07721.11
5.6.100.0100.04721.00
5.6.90.0170.06721.03
5.6.80.0030.05320.40
5.6.70.0100.07320.43
5.6.60.0030.07320.39
5.6.50.0100.07320.35
5.6.40.0100.07720.37
5.6.30.0100.04720.48
5.6.20.0070.07720.39
5.6.10.0070.08020.38
5.6.00.0070.07320.45
5.5.380.0130.07020.52
5.5.370.0130.07320.35
5.5.360.0100.07720.36
5.5.350.0030.06320.43
5.5.340.0100.07020.74
5.5.330.0100.07320.89
5.5.320.0200.07020.92
5.5.310.0130.08320.77
5.5.300.0130.04720.88
5.5.290.0000.08320.88
5.5.280.0100.08320.89
5.5.270.0100.07020.73
5.5.260.0230.07320.79
5.5.250.0170.04720.66
5.5.240.0100.04320.29
5.5.230.0170.04720.18
5.5.220.0100.07720.28
5.5.210.0100.04320.31
5.5.200.0070.04720.10
5.5.190.0030.08020.15
5.5.180.0070.06020.15
5.5.160.0070.05020.11
5.5.150.0100.08320.24
5.5.140.0130.05320.23
5.5.130.0030.04320.22
5.5.120.0170.07020.09
5.5.110.0070.06720.14
5.5.100.0100.07020.16
5.5.90.0100.03320.11
5.5.80.0100.08020.11
5.5.70.0070.04720.15
5.5.60.0070.05320.04
5.5.50.0130.06320.05
5.5.40.0100.05320.05
5.5.30.0000.04720.14
5.5.20.0030.04720.03
5.5.10.0130.06020.04
5.5.00.0100.04720.03
5.4.450.0070.04719.49
5.4.440.0000.05719.48
5.4.430.0100.04019.53
5.4.420.0030.08319.41
5.4.410.0170.03719.43
5.4.400.0200.06719.05
5.4.390.0070.05019.04
5.4.380.0000.06719.09
5.4.370.0100.07318.95
5.4.360.0070.04719.13
5.4.350.0030.04718.90
5.4.340.0100.07019.18
5.4.320.0170.03719.04
5.4.310.0100.08019.13
5.4.300.0070.07319.15
5.4.290.0000.08018.84
5.4.280.0000.05318.98
5.4.270.0070.07019.12
5.4.260.0130.06719.16
5.4.250.0000.04319.22
5.4.240.0030.08019.13
5.4.230.0070.07718.87
5.4.220.0100.07018.86
5.4.210.0030.04019.15
5.4.200.0170.06319.18
5.4.190.0070.05719.05
5.4.180.0170.06719.11
5.4.170.0030.08019.02
5.4.160.0070.06319.07
5.4.150.0100.06318.83
5.4.140.0070.07716.45
5.4.130.0200.05716.43
5.4.120.0070.05316.26
5.4.110.0070.06016.51
5.4.100.0130.03316.36
5.4.90.0030.04316.50
5.4.80.0070.06016.49
5.4.70.0070.07316.42
5.4.60.0030.04316.32
5.4.50.0130.05016.41
5.4.40.0000.07016.49
5.4.30.0100.06716.29
5.4.20.0070.07016.44
5.4.10.0100.04016.47
5.4.00.0000.04315.89
5.3.290.0200.06714.72
5.3.280.0100.06314.53
5.3.270.0030.05014.75
5.3.260.0130.03314.66
5.3.250.0130.07014.58
5.3.240.0000.07014.53
5.3.230.0100.07314.57
5.3.220.0130.07314.71
5.3.210.0030.07714.53
5.3.200.0030.06314.63
5.3.190.0170.03314.63
5.3.180.0030.07714.67
5.3.170.0130.07314.48
5.3.160.0070.07714.55
5.3.150.0070.07314.67
5.3.140.0030.07014.64
5.3.130.0130.04314.65
5.3.120.0070.07714.61
5.3.110.0100.08014.56
5.3.100.0070.06014.18
5.3.90.0030.07313.95
5.3.80.0070.04013.99
5.3.70.0170.03714.07
5.3.60.0070.04014.09
5.3.50.0100.06013.87
5.3.40.0100.03714.07
5.3.30.0030.05314.05
5.3.20.0100.07013.62
5.3.10.0100.03313.81
5.3.00.0100.06713.64
5.2.170.0030.04312.29
5.2.160.0070.03312.29
5.2.150.0100.05012.29
5.2.140.0070.03312.29
5.2.130.0070.04712.29
5.2.120.0030.06012.29
5.2.110.0030.06312.29
5.2.100.0030.05012.29
5.2.90.0130.05312.29
5.2.80.0130.05012.29
5.2.70.0000.04712.29
5.2.60.0030.05712.29
5.2.50.0030.06012.29
5.2.40.0030.03712.29
5.2.30.0000.03712.29
5.2.20.0100.03012.29
5.2.10.0000.05312.29
5.2.00.0030.06012.29
5.1.60.0070.05312.29
5.1.50.0070.04312.29
5.1.40.0030.03312.29
5.1.30.0070.05712.29
5.1.20.0070.03712.29
5.1.10.0100.02312.29
5.1.00.0030.05012.29
5.0.50.0000.02712.29
5.0.40.0070.04012.29
5.0.30.0000.03312.29
5.0.20.0000.02012.29
5.0.10.0000.02312.29
5.0.00.0000.05312.29
4.4.90.0030.03012.29
4.4.80.0000.02712.29
4.4.70.0030.03312.29
4.4.60.0030.02712.29
4.4.50.0000.03012.29
4.4.40.0030.05012.29
4.4.30.0000.03712.29
4.4.20.0000.03712.29
4.4.10.0000.02312.29
4.4.00.0070.04312.29
4.3.110.0030.03012.29
4.3.100.0030.02012.29
4.3.90.0000.01712.29
4.3.80.0030.03312.29
4.3.70.0000.03312.29
4.3.60.0000.03712.29
4.3.50.0030.02012.29
4.3.40.0030.02712.29
4.3.30.0000.02012.29
4.3.20.0030.03712.29
4.3.10.0000.03712.29
4.3.00.0000.03712.29

preferences:
48.02 ms | 401 KiB | 5 Q