3v4l.org

run code in 300+ PHP versions simultaneously
<?php function is_serialized( $data ) { // 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 ( !preg_match( '/^([adObis]):/', $data, $badions ) ) return false; switch ( $badions[1] ) { case 'a' : case 'O' : case 's' : if ( preg_match( "/^{$badions[1]}:[0-9]+:.*[;}]\$/s", $data ) ) return true; break; case 'b' : case 'i' : case 'd' : if ( preg_match( "/^{$badions[1]}:[0-9.E-]+;\$/", $data ) ) return true; break; } return false; } echo is_serialized('s:1:"1"');

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)
8.3.60.0130.00716.88
8.3.50.0190.00222.20
8.3.40.0190.00318.84
8.3.30.0110.00419.14
8.3.20.0090.00620.21
8.3.10.0070.00023.65
8.3.00.0050.00319.51
8.2.180.0150.00018.66
8.2.170.0150.00722.96
8.2.160.0130.00020.34
8.2.150.0070.00024.18
8.2.140.0080.00024.66
8.2.130.0140.00326.16
8.2.120.0040.00422.38
8.2.110.0040.00422.20
8.2.100.0090.00318.03
8.2.90.0040.00419.34
8.2.80.0000.00818.04
8.2.70.0040.00817.88
8.2.60.0030.00618.05
8.2.50.0080.00018.07
8.2.40.0070.00018.41
8.2.30.0050.00218.22
8.2.20.0050.00317.96
8.2.10.0060.00318.28
8.2.00.0040.00417.99
8.1.280.0070.00725.92
8.1.270.0090.00023.84
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0030.00623.80
8.1.230.0110.00019.14
8.1.220.0060.00317.77
8.1.210.0000.00818.77
8.1.200.0040.00417.48
8.1.190.0050.00317.41
8.1.180.0030.00618.10
8.1.170.0030.00518.71
8.1.160.0000.00722.03
8.1.150.0040.00418.89
8.1.140.0070.00317.66
8.1.130.0050.00317.91
8.1.120.0040.00417.55
8.1.110.0000.00717.53
8.1.100.0040.00417.47
8.1.90.0000.00717.59
8.1.80.0000.00717.59
8.1.70.0000.00717.60
8.1.60.0090.00017.75
8.1.50.0030.00517.63
8.1.40.0040.00417.72
8.1.30.0000.00817.76
8.1.20.0040.00417.74
8.1.10.0000.00817.59
8.1.00.0030.00517.61
8.0.300.0090.00318.77
8.0.290.0000.00817.18
8.0.280.0000.00718.38
8.0.270.0000.00717.32
8.0.260.0030.00317.19
8.0.250.0000.00716.99
8.0.240.0000.00817.11
8.0.230.0050.00216.98
8.0.220.0030.00517.01
8.0.210.0000.00717.00
8.0.200.0050.00317.10
8.0.190.0030.00517.09
8.0.180.0070.00017.11
8.0.170.0080.00017.05
8.0.160.0040.00416.98
8.0.150.0000.00716.97
8.0.140.0000.00716.96
8.0.130.0000.00813.46
8.0.120.0030.00617.05
8.0.110.0000.00717.15
8.0.100.0050.00317.21
8.0.90.0000.00717.09
8.0.80.0100.01017.13
8.0.70.0040.00417.16
8.0.60.0050.00217.10
8.0.50.0050.00216.89
8.0.30.0080.01417.19
8.0.20.0130.00517.46
8.0.10.0050.00217.17
8.0.00.0120.00616.98
7.4.330.0000.00615.09
7.4.320.0060.00016.80
7.4.300.0000.00616.84
7.4.290.0000.00716.82
7.4.280.0000.00716.88
7.4.270.0070.00016.88
7.4.260.0070.00016.75
7.4.250.0070.00016.84
7.4.240.0040.00416.83
7.4.230.0000.00716.81
7.4.220.0050.01316.96
7.4.210.0080.00916.93
7.4.200.0030.00316.96
7.4.190.0000.00716.58
7.4.160.0120.00316.70
7.4.150.0090.00917.40
7.4.140.0080.01217.86
7.4.130.0120.00516.77
7.4.120.0110.00616.78
7.4.110.0090.00916.74
7.4.100.0070.01016.76
7.4.90.0100.01016.61
7.4.80.0070.01619.39
7.4.70.0090.00916.94
7.4.60.0070.01016.78
7.4.50.0040.00416.52
7.4.40.0060.00622.77
7.4.30.0050.01116.68
7.4.10.0100.00715.09
7.4.00.0060.01015.13
7.3.330.0030.00313.58
7.3.320.0050.00013.50
7.3.310.0040.00416.29
7.3.300.0000.00716.41
7.3.290.0040.01116.42
7.3.280.0080.01116.42
7.3.270.0140.00317.40
7.3.260.0100.00716.72
7.3.250.0120.01016.79
7.3.240.0070.01016.43
7.3.230.0130.00316.72
7.3.210.0100.00616.61
7.3.200.0070.00519.39
7.3.190.0160.00016.81
7.3.180.0090.00616.76
7.3.170.0060.00916.55
7.3.160.0070.01316.71
7.3.130.0100.01015.07
7.3.120.0050.01315.06
7.3.110.0030.01615.07
7.3.100.0090.00315.07
7.3.90.0060.00615.37
7.3.80.0100.00315.07
7.3.70.0040.00715.09
7.3.60.0040.01115.07
7.3.50.0070.01015.07
7.3.40.0110.00315.10
7.3.30.0130.00315.07
7.3.20.0090.00616.84
7.3.10.0070.01116.56
7.3.00.0080.00916.79
7.2.330.0110.00716.74
7.2.320.0260.01716.64
7.2.310.0140.00316.65
7.2.300.0120.00416.79
7.2.290.0100.00716.99
7.2.260.0140.00315.17
7.2.250.0040.01515.40
7.2.240.0060.00915.30
7.2.230.0060.00915.32
7.2.220.0040.00815.43
7.2.210.0000.01015.25
7.2.200.0060.00915.24
7.2.190.0090.00615.07
7.2.180.0000.01015.35
7.2.170.0000.01415.07
7.2.160.0070.00715.07
7.2.150.0040.01117.23
7.2.140.0070.00717.13
7.2.130.0110.01116.89
7.2.120.0090.00817.10
7.2.110.0060.01116.98
7.2.100.0110.00616.76
7.2.90.0090.00317.01
7.2.80.0120.00816.88
7.2.70.0090.01017.00
7.2.60.0080.00916.91
7.2.50.0150.00616.92
7.2.40.0100.00617.02
7.2.30.0130.00517.10
7.2.20.0040.01416.86
7.2.10.0070.00916.95
7.2.00.0060.01017.92
7.1.330.0000.01315.71
7.1.320.0090.00015.69
7.1.310.0030.00916.02
7.1.300.0040.01416.00
7.1.290.0060.00916.19
7.1.280.0060.01015.89
7.1.270.0090.00616.11
7.1.260.0100.00316.23
7.1.250.0110.00415.92
7.1.240.0040.01215.95
7.1.230.0000.01315.80
7.1.220.0100.00315.88
7.1.210.0040.00816.07
7.1.200.0050.00816.03
7.1.190.0100.00315.93
7.1.180.0120.00216.04
7.1.170.0060.00915.96
7.1.160.0070.01016.08
7.1.150.0000.01416.00
7.1.140.0060.00616.11
7.1.130.0070.00716.02
7.1.120.0080.00315.73
7.1.110.0020.01116.02
7.1.100.0030.00817.38
7.1.90.0080.00016.12
7.1.80.0070.00615.71
7.1.70.0060.00616.54
7.1.60.0020.01617.76
7.1.50.0020.01416.66
7.1.40.0070.01015.94
7.1.30.0070.01015.99
7.1.20.0040.01115.99
7.1.10.0030.00716.10
7.1.00.0020.04119.18
7.0.330.0030.00615.60
7.0.320.0070.00715.56
7.0.310.0030.00715.71
7.0.300.0000.01015.68
7.0.290.0070.00715.61
7.0.280.0070.00315.64
7.0.270.0080.00415.42
7.0.260.0030.01015.54
7.0.250.0030.01415.59
7.0.240.0070.00715.70
7.0.230.0040.00715.51
7.0.220.0000.01015.46
7.0.210.0070.00715.61
7.0.200.0080.00816.16
7.0.190.0000.01215.73
7.0.180.0110.00415.59
7.0.170.0030.01415.48
7.0.160.0030.01015.59
7.0.150.0000.01615.84
7.0.140.0080.03618.89
7.0.130.0030.00615.49
7.0.120.0080.00015.74
7.0.110.0070.00315.40
7.0.100.0030.01015.79
7.0.90.0040.01115.25
7.0.80.0030.01015.25
7.0.70.0060.00615.60
7.0.60.0030.03217.59
7.0.50.0050.05016.62
7.0.40.0020.04217.57
7.0.30.0190.04117.68
7.0.20.0070.02717.62
7.0.10.0190.02817.57
7.0.00.0020.02917.67
5.6.400.0090.00915.07
5.6.390.0040.01215.07
5.6.380.0040.01215.07
5.6.370.0000.01215.07
5.6.360.0000.01315.07
5.6.350.0070.01015.07
5.6.340.0090.00615.07
5.6.330.0000.01315.07
5.6.320.0040.01215.07
5.6.310.0000.00915.07
5.6.300.0070.00715.07
5.6.290.0090.00615.07
5.6.280.0050.04018.11
5.6.270.0130.00015.07
5.6.260.0030.01015.07
5.6.250.0070.00715.07
5.6.240.0070.00715.07
5.6.230.0030.01015.07
5.6.220.0060.00615.07
5.6.210.0030.05017.84
5.6.200.0070.04516.68
5.6.190.0050.03117.84
5.6.180.1920.02517.91
5.6.170.0180.04317.82
5.6.160.0040.03417.75
5.6.150.0090.02716.62
5.6.140.0020.02216.62
5.6.130.0090.01816.61
5.6.120.0100.03718.09
5.6.110.0080.03818.04
5.6.100.0020.03318.08
5.6.90.0070.04618.04
5.6.80.0020.02517.73
5.6.70.0030.04017.73
5.6.60.0070.00715.07
5.6.50.0090.00915.07
5.6.40.0040.00715.07
5.6.30.0030.01315.07
5.6.20.0080.00515.07
5.6.10.0090.00015.07
5.6.00.0030.00715.07
5.5.380.0090.00615.07
5.5.370.0090.00615.07
5.5.360.0000.01315.07
5.5.350.0160.03917.80
5.5.340.0040.03216.55
5.5.330.0040.05117.72
5.5.320.0250.04017.77
5.5.310.0210.04317.67
5.5.300.0080.03516.51
5.5.290.0060.03316.57
5.5.280.0120.03817.86
5.5.270.0070.02117.94
5.5.260.0100.02517.88
5.5.250.0150.04217.87
5.5.240.0040.04617.67
5.5.230.0030.01215.07
5.5.220.0000.01215.07
5.5.210.0160.00015.07
5.5.200.0090.00315.07
5.5.190.0070.00715.07
5.5.180.0070.00715.07
5.5.170.0070.00715.07
5.5.160.0160.00015.07
5.5.150.0060.00915.07
5.5.140.0090.00315.07
5.5.130.0090.00315.07
5.5.120.0060.00615.07
5.5.110.0000.01515.07
5.5.100.0090.00615.07
5.5.90.0090.00615.07
5.5.80.0030.01015.07
5.5.70.0000.01315.07
5.5.60.0100.00315.07
5.5.50.0000.01315.07
5.5.40.0120.00315.07
5.5.30.0140.00015.07
5.5.20.0060.00615.07
5.5.10.0040.01115.07
5.5.00.0000.01315.07
5.4.450.0180.03317.30
5.4.440.0100.04217.28
5.4.430.0090.04317.19
5.4.420.0130.02717.27
5.4.410.0150.01717.11
5.4.400.0170.03617.15
5.4.390.1850.02117.03
5.4.380.0180.02917.15
5.4.370.0170.02517.01
5.4.360.0200.03517.11
5.4.350.0080.02117.14
5.4.340.0100.02217.10
5.4.330.0050.00215.07
5.4.320.0170.02317.03
5.4.310.0180.02417.16
5.4.300.0170.03917.14
5.4.290.0130.04017.10
5.4.280.0040.02413.73
5.4.270.0050.02413.73
5.4.260.0080.02413.73
5.4.250.0030.02313.73
5.4.240.0040.02313.73
5.4.230.0060.02313.73
5.4.220.0060.02113.73
5.4.210.0070.02213.73
5.4.200.0070.02413.73
5.4.190.0040.02913.72
5.4.180.0040.02613.73
5.4.170.0050.02413.73
5.4.160.0040.02513.73
5.4.150.0060.02213.73
5.4.140.0080.02213.57
5.4.130.0040.02413.56
5.4.120.0050.02213.54
5.4.110.0040.02313.54
5.4.100.0050.01913.54
5.4.90.0080.01913.54
5.4.80.0050.02013.54
5.4.70.0050.02213.54
5.4.60.0060.01813.54
5.4.50.0080.01813.54
5.4.40.0090.01713.53
5.4.30.0050.02313.53
5.4.20.0080.01913.53
5.4.10.0050.02113.53
5.4.00.0040.01913.28
5.3.290.2050.02315.45
5.3.280.0040.02313.89
5.3.270.0040.02513.90
5.3.260.0050.02413.89
5.3.250.0080.01913.89
5.3.240.0040.02413.89
5.3.230.0060.02113.89
5.3.220.0050.02213.88
5.3.210.0070.02413.87
5.3.200.0030.03213.87
5.3.190.0040.02813.87
5.3.180.0040.02513.87
5.3.170.0060.02913.87
5.3.160.0040.02613.87
5.3.150.0080.02713.87
5.3.140.0080.02213.86
5.3.130.0050.02813.86
5.3.120.0060.02213.86
5.3.110.0070.02413.86
5.3.100.0110.02613.60
5.3.90.0060.03413.59
5.3.80.0090.02213.59
5.3.70.0060.02813.59
5.3.60.0040.02813.58
5.3.50.0060.02413.55
5.3.40.0060.02113.55
5.3.30.0020.02313.53
5.3.20.0040.02313.43
5.3.10.0060.02213.41
5.3.00.0080.02013.40
5.2.170.0040.0339.24
5.2.160.0080.0299.25
5.2.150.0070.0339.25
5.2.140.0040.0479.23
5.2.130.0050.0329.20
5.2.120.0070.0289.20
5.2.110.0120.0259.20
5.2.100.0080.0309.20
5.2.90.0040.0319.20
5.2.80.0060.0319.19
5.2.70.0050.0319.19
5.2.60.0090.0289.15
5.2.50.0040.0339.12
5.2.40.0060.0309.09
5.2.30.0030.0329.08
5.2.20.0060.0289.07
5.2.10.0080.0258.96
5.2.00.0060.0318.82
5.1.60.0080.0218.10
5.1.50.0020.0338.09
5.1.40.0030.0278.08
5.1.30.0020.0298.43
5.1.20.0020.0298.45
5.1.10.0090.0258.18
5.1.00.0050.0388.17
5.0.50.0040.0356.66
5.0.40.0040.0226.52
5.0.30.0040.0376.33
5.0.20.0070.0236.29
5.0.10.0050.0316.28
5.0.00.0040.0366.28
4.4.90.0050.0294.78
4.4.80.0060.0204.75
4.4.70.0140.0624.76
4.4.60.0050.0184.76
4.4.50.0040.0464.77
4.4.40.0030.0384.71
4.4.30.0070.0194.76
4.4.20.0070.0214.84
4.4.10.0030.0264.85
4.4.00.0040.0354.75
4.3.110.0060.0214.67
4.3.100.0120.0224.66
4.3.90.0050.0144.64
4.3.80.0040.0244.59
4.3.70.0080.0204.63
4.3.60.0040.0154.63
4.3.50.0030.0174.63
4.3.40.0050.0244.54
4.3.30.0010.0173.33
4.3.20.0010.0173.30
4.3.10.0010.0173.27
4.3.00.0070.02013.91

preferences:
42.84 ms | 400 KiB | 5 Q