3v4l.org

run code in 300+ PHP versions simultaneously
<?php function is_serialized( $data, $strict = true ) { // if it isn't a string, it isn't serialized. if ( ! is_string( $data ) ) { return false; } $data = trim( $data ); if ( 'N;' == $data ) { return true; } if ( strlen( $data ) < 4 ) { return false; } if ( ':' !== $data[1] ) { return false; } if ( $strict ) { $lastc = substr( $data, -1 ); if ( ';' !== $lastc && '}' !== $lastc ) { return false; } } else { $semicolon = strpos( $data, ';' ); $brace = strpos( $data, '}' ); // Either ; or } must exist. if ( false === $semicolon && false === $brace ) return false; // But neither must be in the first X characters. if ( false !== $semicolon && $semicolon < 3 ) return false; if ( false !== $brace && $brace < 4 ) return false; } $token = $data[0]; switch ( $token ) { case 's' : if ( $strict ) { if ( '"' !== substr( $data, -2, 1 ) ) { return false; } } elseif ( false === strpos( $data, '"' ) ) { return false; } // or else fall through case 'a' : case 'O' : return (bool) preg_match( "/^{$token}:[0-9]+:/s", $data ); case 'b' : case 'i' : case 'd' : $end = $strict ? '$' : ''; return (bool) preg_match( "/^{$token}:[0-9.E-]+;$end/", $data ); } return false; } $str = 's:4:"test"xxx}'; if (is_serialized($str, false)) { echo 'fuck'; } else { echo 'haha'; } if (is_serialized($str)) { echo 'haha'; } else { echo 'fuck'; }

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)
8.3.60.0110.01118.52
8.3.50.0110.00721.29
8.3.40.0120.00318.70
8.3.30.0110.00319.22
8.3.20.0040.00420.27
8.3.10.0040.00423.48
8.3.00.0090.00019.51
8.2.180.0100.01016.50
8.2.170.0120.00622.96
8.2.160.0120.00920.53
8.2.150.0030.00524.18
8.2.140.0080.00024.66
8.2.130.0030.00526.16
8.2.120.0040.00422.05
8.2.110.0040.00422.05
8.2.100.0120.00017.73
8.2.90.0050.00319.41
8.2.80.0080.00017.97
8.2.70.0040.00417.75
8.2.60.0000.00817.93
8.2.50.0100.00019.50
8.2.40.0030.00519.89
8.2.30.0040.00418.26
8.2.20.0040.00417.95
8.2.10.0040.00418.35
8.2.00.0050.00317.86
8.1.280.0040.01125.92
8.1.270.0030.00622.27
8.1.260.0110.00426.35
8.1.250.0080.01128.09
8.1.240.0030.00723.88
8.1.230.0090.00319.38
8.1.220.0050.00318.04
8.1.210.0000.00818.77
8.1.200.0000.00917.35
8.1.190.0080.00017.38
8.1.180.0060.00318.10
8.1.170.0030.00518.75
8.1.160.0050.00222.00
8.1.150.0040.00418.87
8.1.140.0000.00817.59
8.1.130.0030.00317.92
8.1.120.0070.00017.63
8.1.110.0040.00417.62
8.1.100.0000.00717.61
8.1.90.0000.00817.57
8.1.80.0000.00717.70
8.1.70.0030.00317.51
8.1.60.0000.00917.77
8.1.50.0000.00817.70
8.1.40.0040.00417.75
8.1.30.0030.00517.73
8.1.20.0030.00517.68
8.1.10.0040.00417.75
8.1.00.0000.00817.66
8.0.300.0040.00418.77
8.0.290.0060.00317.00
8.0.280.0050.00218.39
8.0.270.0000.00717.31
8.0.260.0000.00617.22
8.0.250.0040.00417.18
8.0.240.0000.00717.09
8.0.230.0050.00317.04
8.0.220.0030.00317.04
8.0.210.0040.00417.07
8.0.200.0000.00717.18
8.0.190.0090.00017.16
8.0.180.0070.00016.99
8.0.170.0040.00417.05
8.0.160.0040.00417.04
8.0.150.0070.00017.14
8.0.140.0030.00516.96
8.0.130.0000.00513.46
8.0.120.0040.00417.05
8.0.110.0030.00516.97
8.0.100.0030.00517.10
8.0.90.0000.00716.90
8.0.80.0150.00617.04
8.0.70.0000.00817.07
8.0.60.0050.00217.06
8.0.50.0000.00817.11
8.0.30.0150.00717.54
8.0.20.0100.00917.45
8.0.10.0070.00017.19
8.0.00.0080.00917.09
7.4.330.0060.00015.02
7.4.320.0060.00016.75
7.4.300.0030.00316.75
7.4.290.0000.00716.60
7.4.280.0040.00416.65
7.4.270.0000.00716.85
7.4.260.0030.00316.66
7.4.250.0040.00416.70
7.4.240.0030.00516.82
7.4.230.0030.00316.75
7.4.220.0120.00616.73
7.4.210.0120.00916.88
7.4.200.0040.00416.83
7.4.160.0120.00616.66
7.4.150.0070.01017.40
7.4.140.0080.00817.86
7.4.130.0140.00916.70
7.4.120.0080.01416.69
7.4.110.0130.00316.70
7.4.100.0110.00716.70
7.4.90.0030.01416.54
7.4.80.0130.01019.39
7.4.70.0060.01516.67
7.4.60.0030.01416.64
7.4.50.0060.00316.71
7.4.40.0090.00916.81
7.4.30.0140.00316.64
7.4.00.0080.00515.20
7.3.330.0000.00613.53
7.3.320.0030.00313.40
7.3.310.0050.00216.53
7.3.300.0000.00616.55
7.3.290.0130.00516.51
7.3.280.0090.01016.52
7.3.270.0160.00317.40
7.3.260.0090.00916.83
7.3.250.0110.00716.77
7.3.240.0070.01016.71
7.3.230.0000.01716.58
7.3.210.0130.01016.65
7.3.200.0030.01719.39
7.3.190.0060.01016.63
7.3.180.0110.00516.77
7.3.170.0090.00816.49
7.3.160.0090.00616.62
7.3.10.0040.01416.56
7.3.00.0100.01616.65
7.2.330.0100.01316.95
7.2.320.0140.00616.76
7.2.310.0170.00716.94
7.2.300.0030.01416.65
7.2.290.0070.01017.05
7.2.130.0160.01316.76
7.2.120.0140.01117.14
7.2.110.0150.01117.00
7.2.100.0100.00616.91
7.2.90.0060.01016.80
7.2.80.0110.01116.98
7.2.70.0170.00716.80
7.2.60.0170.00616.58
7.2.50.0000.02516.44
7.2.40.0310.00317.11
7.2.30.0160.01016.81
7.2.20.0120.00517.11
7.2.10.0090.00917.00
7.2.00.0050.01018.33
7.1.250.0120.00815.77
7.1.100.0090.00318.37
7.1.70.0030.00517.40
7.1.60.0070.01819.11
7.1.50.0100.01416.83
7.1.00.0030.07722.32
7.0.200.0050.00516.84
7.0.140.0100.06722.10
7.0.60.0070.05719.82
7.0.50.0100.08317.84
7.0.40.0100.04020.26
7.0.30.0100.04720.25
7.0.20.0200.08720.26
7.0.10.0070.09020.26
7.0.00.0030.06020.07
5.6.280.0070.07021.00
5.6.210.0130.07720.62
5.6.200.0030.04018.16
5.6.190.0070.04020.41
5.6.180.0270.07320.49
5.6.170.0300.08320.47
5.6.160.0070.07720.55
5.6.150.0000.07018.15
5.6.140.0200.06718.28
5.6.130.0100.07318.18
5.6.120.0030.04720.91
5.6.110.0030.08721.02
5.6.100.0200.06021.01
5.6.90.0030.04721.02
5.6.80.0100.07020.41
5.5.350.0200.08020.54
5.5.340.0000.04018.02
5.5.330.0030.04720.41
5.5.320.0230.04320.31
5.5.310.0130.04720.31
5.5.300.0130.07318.04
5.5.290.0000.06017.99
5.5.280.0070.07720.99
5.5.270.0100.05020.91
5.5.260.0030.04320.91
5.5.250.0100.07320.57
5.5.240.2830.03020.20
5.4.450.0700.06719.59
5.4.440.0830.06019.48
5.4.430.0730.07019.19
5.4.420.0870.05319.45
5.4.410.0900.05319.18
5.4.400.0870.05319.09
5.4.390.0800.06019.20
5.4.380.0870.05319.29
5.4.370.0730.06318.98
5.4.360.0800.06319.28
5.4.350.0730.05719.28
5.4.340.0050.04012.03
5.4.320.0070.03712.52
5.4.310.0110.03912.52
5.4.300.0070.04112.52
5.4.290.0060.04112.52
5.4.280.0050.03712.41
5.4.270.0070.04012.41
5.4.260.0050.04312.41
5.4.250.0050.03912.41
5.4.240.0070.03712.42
5.4.230.0100.04312.40
5.4.220.0070.03612.41
5.4.210.0030.04212.41
5.4.200.0080.03612.41
5.4.190.0060.03612.40
5.4.180.0070.03812.40
5.4.170.0080.03512.41
5.4.160.0040.04012.41
5.4.150.0080.03912.41
5.4.140.0070.04712.09
5.4.130.0120.03112.08
5.4.120.0050.03612.04
5.4.110.0080.03412.03
5.4.100.0070.03912.03
5.4.90.0130.04912.03
5.4.80.0090.04812.03
5.4.70.0090.03812.02
5.4.60.0050.03712.03
5.4.50.0040.03712.02
5.4.40.0060.03512.01
5.4.30.0080.03512.01
5.4.20.0070.04012.01
5.4.10.0060.04212.01
5.4.00.0050.03511.49
5.3.290.0050.04612.80
5.3.280.0040.04212.70
5.3.270.0030.04312.73
5.3.260.0080.04612.72
5.3.250.0110.03712.72
5.3.240.0040.04312.71
5.3.230.0060.04112.71
5.3.220.0080.03812.68
5.3.210.0070.04212.68
5.3.200.0110.03812.68
5.3.190.0060.04912.68
5.3.180.0060.03812.67
5.3.170.0070.04812.67
5.3.160.0060.04512.68
5.3.150.0040.03912.68
5.3.140.0040.03812.67
5.3.130.0060.03912.66
5.3.120.0090.03612.66
5.3.110.0050.04012.66
5.3.100.0060.03612.15
5.3.90.0080.03312.13
5.3.80.0080.03512.12
5.3.70.0050.03912.12
5.3.60.0090.03312.11
5.3.50.0100.04012.05
5.3.40.0050.03912.05
5.3.30.0070.03612.01
5.3.20.0060.04011.79
5.3.10.0020.04311.76
5.3.00.0060.04111.74
5.2.170.0080.0409.25
5.2.160.0040.0419.25
5.2.150.0020.0359.25
5.2.140.0050.0349.25
5.2.130.0030.0319.21
5.2.120.0090.0419.21
5.2.110.0050.0399.21
5.2.100.0140.0399.21
5.2.90.0090.0269.21
5.2.80.0070.0289.21
5.2.70.0050.0319.21
5.2.60.0040.0309.16
5.2.50.0050.0299.13
5.2.40.0070.0279.11
5.2.30.0060.0329.09
5.2.20.0080.0279.07
5.2.10.0040.0308.96
5.2.00.0040.0348.83
5.1.60.0060.0298.12
5.1.50.0070.0288.11
5.1.40.0040.0308.09
5.1.30.0050.0288.44
5.1.20.0060.0288.46
5.1.10.0050.0278.20
5.1.00.0050.0278.19
5.0.50.0040.0296.67
5.0.40.0010.0226.53
5.0.30.0040.0306.34
5.0.20.0020.0216.30
5.0.10.0030.0216.29
5.0.00.0050.0426.29
4.4.90.0030.0224.78
4.4.80.0030.0234.75
4.4.70.0050.0154.76
4.4.60.0020.0174.75
4.4.50.0030.0154.77
4.4.40.0010.0334.71
4.4.30.0020.0174.76
4.4.20.0050.0134.85
4.4.10.0050.0174.85
4.4.00.0030.0284.76
4.3.110.0020.0174.67
4.3.100.0010.0184.67
4.3.90.0040.0134.63
4.3.80.0010.0254.58
4.3.70.0030.0214.63
4.3.60.0030.0144.63
4.3.50.0040.0234.63
4.3.40.0050.0284.54
4.3.30.0020.0173.35
4.3.20.0010.0173.32
4.3.10.0040.0143.28
4.3.00.0170.0276.86

preferences:
43.29 ms | 401 KiB | 5 Q