3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = ''; for ($i=0; $i < 128; $i++) { $string .= chr($i); } $encoded = json_encode($string, JSON_HEX_TAG | JSON_HEX_APOS | JSON_HEX_AMP | JSON_HEX_QUOT); $decoded =json_decode($encoded, TRUE); var_dump($string === $decoded);

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)
8.3.40.0150.00019.02
8.3.30.0110.00419.21
8.3.20.0040.00420.30
8.3.10.0040.00423.53
8.3.00.0030.00619.56
8.2.170.0120.00622.96
8.2.160.0150.00020.55
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0040.00419.25
8.2.110.0060.00322.20
8.2.100.0120.00019.64
8.2.90.0080.00019.05
8.2.80.0040.00417.97
8.2.70.0000.00817.75
8.2.60.0090.00317.55
8.2.50.0060.00318.07
8.2.40.0000.00718.28
8.2.30.0000.00818.13
8.2.20.0000.00817.70
8.2.10.0000.00718.08
8.2.00.0000.00919.50
8.1.270.0040.00424.66
8.1.260.0070.01426.35
8.1.250.0000.00828.09
8.1.240.0060.00323.97
8.1.230.0030.00919.22
8.1.220.0000.00817.74
8.1.210.0080.00018.77
8.1.200.0040.00417.23
8.1.190.0040.00417.13
8.1.180.0060.00318.10
8.1.170.0050.00318.71
8.1.160.0050.00321.87
8.1.150.0050.00218.57
8.1.140.0000.00817.39
8.1.130.0040.00419.13
8.1.120.0040.00417.41
8.1.110.0030.00917.28
8.1.100.0000.00717.46
8.1.90.0070.00017.38
8.1.80.0050.00317.29
8.1.70.0030.00317.40
8.1.60.0030.00517.58
8.1.50.0000.00817.34
8.1.40.0000.00717.48
8.1.30.0030.00517.59
8.1.20.0000.00717.58
8.1.10.0040.00417.38
8.1.00.0040.00417.33
8.0.300.0000.00718.77
8.0.290.0000.00816.75
8.0.280.0040.00418.31
8.0.270.0000.00717.13
8.0.260.0000.00716.63
8.0.250.0030.00416.93
8.0.240.0060.00016.91
8.0.230.0080.00016.80
8.0.220.0030.00316.83
8.0.210.0000.00716.80
8.0.200.0050.00316.91
8.0.190.0080.00016.90
8.0.180.0080.00416.76
8.0.170.0050.00316.86
8.0.160.0000.00716.72
8.0.150.0040.00416.75
8.0.140.0020.00516.75
8.0.130.0090.00013.27
8.0.120.0000.00816.70
8.0.110.0040.00416.85
8.0.100.0050.00316.70
8.0.90.0000.00716.75
8.0.80.0060.00916.86
8.0.70.0080.00016.78
8.0.60.0040.00316.69
8.0.50.0080.00016.73
8.0.30.0140.00817.03
8.0.20.0100.00917.40
8.0.10.0050.00216.79
8.0.00.0100.01016.66
7.4.330.0030.00315.00
7.4.320.0030.00316.52
7.4.300.0030.00316.61
7.4.290.0070.00016.67
7.4.280.0040.00416.59
7.4.270.0040.00416.50
7.4.260.0070.00016.50
7.4.250.0070.00016.59
7.4.240.0070.00016.44
7.4.230.0000.00716.40
7.4.220.0120.00616.50
7.4.210.0150.00016.59
7.4.200.0030.00316.52
7.4.160.0060.00916.38
7.4.150.0140.01017.40
7.4.140.0090.00917.86
7.4.130.0140.00316.50
7.4.120.0070.01016.43
7.4.110.0130.00316.47
7.4.100.0070.01116.41
7.4.90.0070.01316.44
7.4.80.0160.00619.39
7.4.70.0130.00316.42
7.4.60.0100.00916.52
7.4.50.0040.00416.28
7.4.40.0070.01016.34
7.4.30.0050.01116.46
7.4.00.0080.00714.99
7.3.330.0000.00513.26
7.3.320.0000.00513.27
7.3.310.0070.00016.18
7.3.300.0000.00716.23
7.3.290.0040.01216.36
7.3.280.0090.01216.36
7.3.270.0150.00317.40
7.3.260.0090.00916.31
7.3.250.0110.00516.47
7.3.240.0100.00616.59
7.3.230.0100.00716.62
7.3.210.0140.00916.59
7.3.200.0070.01019.39
7.3.190.0100.00616.25
7.3.180.0040.01516.25
7.3.170.0090.01316.48
7.3.160.0130.01016.26
7.3.120.0080.00914.96
7.3.110.0040.01115.01
7.3.100.0070.00714.90
7.3.90.0100.00315.05
7.3.80.0070.00414.98
7.3.70.0040.00714.97
7.3.60.0040.01114.49
7.3.50.0030.01314.46
7.3.40.0100.00314.64
7.3.30.0030.01114.53
7.3.20.0060.00616.63
7.3.10.0080.00516.34
7.3.00.0020.01116.61
7.2.330.0030.01416.74
7.2.320.0030.01516.53
7.2.310.0060.01216.62
7.2.300.0080.00816.61
7.2.290.0030.01216.66
7.2.250.0070.01315.00
7.2.240.0040.01515.24
7.2.230.0090.00615.16
7.2.220.0030.01014.89
7.2.210.0090.00615.04
7.2.200.0060.00615.26
7.2.190.0070.00715.22
7.2.180.0060.00915.09
7.2.170.0100.00315.13
7.2.130.0040.01116.79
7.2.120.0000.01216.91
7.2.110.0030.01016.71
7.2.100.0140.00316.57
7.2.90.0030.01216.82
7.2.80.0030.01216.64
7.2.70.0050.00516.32
7.2.60.0000.01316.91
7.2.50.0100.00716.68
7.2.40.0110.00416.82
7.2.30.0040.00816.77
7.2.20.0000.01016.75
7.2.10.0030.01316.91
7.2.00.0000.00916.77
7.1.330.0070.00715.86
7.1.320.0070.00715.89
7.1.310.0080.00815.71
7.1.300.0040.00715.77
7.1.290.0100.00715.83
7.1.280.0030.01015.95
7.1.270.0030.01015.52
7.1.260.0090.00315.95
7.1.250.0060.00615.67
7.1.200.0040.00715.97
7.1.70.0040.00417.11
7.1.60.0170.00719.70
7.1.50.0070.01416.71
7.1.00.0100.06722.35
7.0.200.0090.00016.79
7.0.140.0000.07321.92
7.0.100.0130.07720.00
7.0.90.0100.07019.93
7.0.80.0070.08719.86
7.0.70.0070.08019.95
7.0.60.0100.07019.86
7.0.50.0330.03320.30
7.0.40.0070.08020.10
7.0.30.0130.07720.06
7.0.20.0130.07320.19
7.0.10.0030.05720.13
7.0.00.0130.07020.09
5.6.280.0070.07020.78
5.6.250.0100.07720.51
5.6.240.0130.06020.60
5.6.230.0130.07320.75
5.6.220.0000.08320.67
5.6.210.0100.08320.77
5.6.200.0070.08021.05
5.6.190.0100.07321.01
5.6.180.0230.05720.96
5.6.170.0070.08321.02
5.6.160.0100.08321.07
5.6.150.0100.06721.07
5.6.140.0130.04321.00
5.6.130.0130.08021.11
5.6.120.0000.08721.07
5.6.110.0230.06721.06
5.6.100.0100.08021.09
5.6.90.0100.08020.92
5.6.80.0200.06720.41
5.6.70.0200.08320.38
5.6.60.0030.08020.46
5.6.50.0130.07020.42
5.6.40.0230.06320.38
5.6.30.0070.07720.38
5.6.20.0070.08020.40
5.6.10.0230.06020.37
5.6.00.0070.07320.29
5.5.380.0170.06720.35
5.5.370.0030.08020.36
5.5.360.0070.07720.50
5.5.350.0100.06320.37
5.5.340.0130.07320.88
5.5.330.0100.06720.86
5.5.320.0100.07720.83
5.5.310.0070.08320.74
5.5.300.0070.05320.77
5.5.290.0200.06320.79
5.5.280.0170.05720.73
5.5.270.0100.07320.86
5.5.260.0100.04320.87
5.5.250.0170.07320.54
5.5.240.0130.08020.27
5.5.230.0070.07019.97
5.5.220.0100.07320.29
5.5.210.0030.07320.28
5.5.200.0000.08719.99
5.5.190.0100.07720.22
5.5.180.0130.07720.18
5.5.160.0100.07720.24
5.5.150.0100.07720.26
5.5.140.0070.07719.98
5.5.130.0100.07320.27
5.5.120.0030.08320.07
5.5.110.0170.06720.16
5.5.100.0000.08020.14
5.5.90.0170.06320.11
5.5.80.0030.04720.07
5.5.70.0170.06320.06
5.5.60.0030.07320.14
5.5.50.0130.06720.10
5.5.40.0070.06720.09
5.5.30.0030.08020.08
5.5.20.0070.07320.10
5.5.10.0070.06720.12
5.5.00.0200.06020.03
5.4.450.0200.05319.43
5.4.440.0100.08319.46
5.4.430.0100.06319.41
5.4.420.0070.07019.43
5.4.410.0070.04319.26
5.4.400.0100.07019.15
5.4.390.0030.04018.90
5.4.380.0200.06719.05
5.4.370.0070.07719.10
5.4.360.0070.08319.12
5.4.350.0000.08719.07
5.4.340.0070.07319.04
5.4.320.0200.06718.95
5.4.310.0030.07719.14
5.4.300.0100.05718.95
5.4.290.0100.07319.11
5.4.280.0070.07318.81
5.4.270.0170.06018.98
5.4.260.0030.08019.23
5.4.250.0130.07019.11
5.4.240.0100.07319.03
5.4.230.0000.07319.09
5.4.220.0100.07319.02
5.4.210.0170.06718.98
5.4.200.0030.08019.06
5.4.190.0100.07019.02
5.4.180.0070.07719.05
5.4.170.0070.07318.89
5.4.160.0070.08019.05
5.4.150.0070.07318.88
5.4.140.0070.04316.27
5.4.130.0000.07316.38
5.4.120.0100.06316.28
5.4.110.0170.05716.35
5.4.100.0130.06316.27
5.4.90.0070.07316.39
5.4.80.0100.06716.20
5.4.70.0170.04316.25
5.4.60.0030.07716.24
5.4.50.0000.07016.32
5.4.40.0070.07316.44
5.4.30.0170.05316.28
5.4.20.0000.08016.28
5.4.10.0000.07316.36
5.4.00.0170.06015.78
5.3.290.0000.05014.63
5.3.280.0100.08014.59
5.3.270.0000.07714.61
5.3.260.0130.06714.59
5.3.250.0070.04714.57
5.3.240.0030.08014.43
5.3.230.0130.07314.46
5.3.220.0070.05314.52
5.3.210.0030.04014.43
5.3.200.0070.07714.58
5.3.190.0100.07014.48
5.3.180.0100.06714.51
5.3.170.0070.07014.43
5.3.160.0030.07314.50
5.3.150.0070.04314.55
5.3.140.0070.07714.44
5.3.130.0000.08314.53
5.3.120.0070.07714.54
5.3.110.0070.07714.50
5.3.100.0000.08014.03
5.3.90.0130.06013.88
5.3.80.0100.06014.02
5.3.70.0000.08014.00
5.3.60.0070.07313.87
5.3.50.0100.06013.80
5.3.40.0070.07713.89
5.3.30.0130.06313.89
5.3.20.0000.04313.55
5.3.10.0070.06013.42
5.3.00.0070.06013.63
5.2.170.0030.06711.21
5.2.160.0130.05310.89
5.2.150.0100.05710.98
5.2.140.0030.06311.13
5.2.130.0000.03710.89
5.2.120.0000.05010.95
5.2.110.0070.05011.05
5.2.100.0100.04711.06
5.2.90.0030.06010.93
5.2.80.0070.05711.05
5.2.70.0000.04311.02
5.2.60.0030.06311.00
5.2.50.0000.06711.08
5.2.40.0070.05710.80
5.2.30.0030.06010.83
5.2.20.0030.04010.96
5.2.10.0070.03010.77
5.2.00.0070.04010.77
5.1.60.0030.0539.99
5.1.50.0070.0439.82
5.1.40.0070.0509.96
5.1.30.0100.05010.36
5.1.20.0030.05710.21
5.1.10.0070.05710.07
5.1.00.0100.05010.07
5.0.50.0030.0508.58
5.0.40.0070.0408.50
5.0.30.0000.0608.50
5.0.20.0000.0378.50
5.0.10.0070.0208.50
5.0.00.0030.0638.50
4.4.90.0000.0278.50
4.4.80.0070.0308.50
4.4.70.0070.0308.50
4.4.60.0000.0378.50
4.4.50.0130.0078.50
4.4.40.0000.0578.50
4.4.30.0030.0338.50
4.4.20.0070.0308.50
4.4.10.0030.0338.50
4.4.00.0030.0538.50
4.3.110.0030.0338.50
4.3.100.0030.0378.50
4.3.90.0070.0308.50
4.3.80.0030.0508.50
4.3.70.0070.0308.50
4.3.60.0030.0308.50
4.3.50.0030.0378.50
4.3.40.0100.0338.50
4.3.30.0000.0378.50
4.3.20.0030.0378.50
4.3.10.0000.0278.50
4.3.00.0000.0378.50

preferences:
41.57 ms | 400 KiB | 5 Q