3v4l.org

run code in 300+ PHP versions simultaneously
<?php if (!function_exists('json_encode')) { function json_encode($it) { $tmp = $it; if (!($assoc = is_object($it)) && !is_array($it)) { return _js_enc_value($it); } $i = 0; $it = (array)$it; if (!$assoc) { foreach ($it as $k => $v) { if ($k !== $i) { $assoc = true; break; } $i++; } } $data = array(); foreach ($it as $k => $v) { $v = _js_enc_value($v); if ($assoc) { $k = _js_enc_value($k); $data[] = $k . ':' . $v; } else { $data[] = $v; } } if ($assoc) { $bl = '{'; $br = '}'; } else { $bl = '['; $br = ']'; } return $bl . implode(',', $data) . $br; } function _js_enc_value($value) { switch (true) { case is_array($value): case is_object($value): return json_encode($value); case $value === null: case is_resource($value): return 'null'; case is_bool($value): return $value ? 'true' : 'false'; case is_string($value): return '"' . _js_uc_esc($value) . '"'; default: return $value; } } function _js_uc_esc($value) { $pattern = "@[\x08-\x10\x0c\x0d\\\\\"/]|([^\x08-\x10\x0c\x0d\x32-\x7f\\\\\"/])++@"; return preg_replace_callback($pattern, '_js_uc_esc_cb', $value); } function _js_uc_esc_cb($matches) { switch (true) { case isset($matches[1]): $char = mb_convert_encoding($matches[0], 'UTF-16', 'UTF-8'); $str = ''; $len = strlen($char); for ($i = 0; $i < $len; $i += 2) { $str .= sprintf('\\u%02x%02x', ord($char[$i]), ord($char[$i + 1]) ); } return $str; default: return addcslashes($matches[0], "\x08\x09\x10\x0c\x0d\\\"/"); } } } $var = array( array( 'text', 1, 1.1, true, false, null, array(), new stdClass, ), array( '&\'/"' => "\r\n\t", ), array( '0' => 'hoge', '1' => 'foo', ), (object)array( '0' => 'hoge', '1' => 'foo', ), array( '0' => 'hoge', '2' => 'foo', ), (object)array( '0' => 'hoge', '2' => 'foo', ), ); var_dump(@json_encode($var));

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)
8.3.60.0130.00616.49
8.3.50.0100.00821.91
8.3.40.0090.00618.71
8.3.30.0070.01119.17
8.3.20.0080.00020.39
8.3.10.0000.00723.65
8.3.00.0040.00419.50
8.2.180.0070.01418.54
8.2.170.0130.00322.96
8.2.160.0070.00720.29
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0060.00926.16
8.2.120.0150.00322.13
8.2.110.0100.00022.01
8.2.100.0060.00617.84
8.2.90.0040.00419.22
8.2.80.0080.00018.16
8.2.70.0050.00317.60
8.2.60.0030.00518.04
8.2.50.0000.00818.07
8.2.40.0050.00318.22
8.2.30.0050.00318.04
8.2.20.0000.00817.79
8.2.10.0000.00817.77
8.2.00.0050.00217.85
8.1.280.0190.00025.92
8.1.270.0060.00923.84
8.1.260.0060.00626.35
8.1.250.0020.00528.09
8.1.240.0030.00623.84
8.1.230.0040.00719.11
8.1.220.0080.00017.78
8.1.210.0000.00818.77
8.1.200.0000.01017.48
8.1.190.0080.00017.53
8.1.180.0080.00018.10
8.1.170.0070.00318.62
8.1.160.0040.00422.00
8.1.150.0000.00718.74
8.1.140.0000.00717.43
8.1.130.0030.00617.93
8.1.120.0070.00017.55
8.1.110.0000.00717.53
8.1.100.0070.00017.52
8.1.90.0040.00417.48
8.1.80.0040.00417.43
8.1.70.0000.00717.49
8.1.60.0040.00417.69
8.1.50.0000.00817.48
8.1.40.0060.00317.47
8.1.30.0080.00017.71
8.1.20.0030.00517.73
8.1.10.0040.00417.67
8.1.00.0080.00017.54
8.0.300.0040.00418.77
8.0.290.0040.00417.18
8.0.280.0030.00318.38
8.0.270.0000.00717.32
8.0.260.0030.00616.98
8.0.250.0070.00017.00
8.0.240.0070.00417.03
8.0.230.0050.00216.95
8.0.220.0000.00617.02
8.0.210.0030.00616.97
8.0.200.0000.00717.09
8.0.190.0040.00417.12
8.0.180.0000.00716.93
8.0.170.0020.00517.02
8.0.160.0000.00816.99
8.0.150.0040.00416.91
8.0.140.0040.00416.88
8.0.130.0030.00613.44
8.0.120.0000.01116.83
8.0.110.0080.00016.93
8.0.100.0040.00417.04
8.0.90.0040.00416.88
8.0.80.0070.01316.96
8.0.70.0000.00717.05
8.0.60.0000.00817.02
8.0.50.0040.00416.91
8.0.30.0120.00617.06
8.0.20.0090.00917.40
8.0.10.0050.00317.10
8.0.00.0100.01016.88
7.4.330.0000.00615.13
7.4.320.0000.00716.68
7.4.300.0000.00616.51
7.4.290.0000.00816.53
7.4.280.0070.00016.56
7.4.270.0030.00316.67
7.4.260.0040.00416.57
7.4.250.0050.00316.50
7.4.240.0030.00316.55
7.4.230.0000.00716.48
7.4.220.0160.00316.68
7.4.210.0080.00716.69
7.4.200.0070.00016.55
7.4.190.0030.00516.76
7.4.160.0080.00816.57
7.4.150.0140.00417.40
7.4.140.0110.00917.86
7.4.130.0150.00116.61
7.4.120.0120.00616.54
7.4.110.0070.01016.52
7.4.100.0120.00916.55
7.4.90.0090.00916.71
7.4.80.0100.00719.39
7.4.70.0070.01016.46
7.4.60.0100.00716.43
7.4.50.0080.00016.37
7.4.40.0050.00522.77
7.4.30.0130.00416.30
7.4.00.0110.00415.16
7.3.330.0030.00213.23
7.3.320.0050.00013.29
7.3.310.0000.00716.41
7.3.300.0000.00616.23
7.3.290.0100.00716.35
7.3.280.0060.01116.32
7.3.270.0070.01017.40
7.3.260.0080.00816.25
7.3.250.0090.01116.43
7.3.240.0120.00916.31
7.3.230.0030.01316.54
7.3.210.0110.00516.69
7.3.200.0040.01419.39
7.3.190.0160.00016.56
7.3.180.0110.00416.28
7.3.170.0120.00616.51
7.3.160.0030.01316.65
7.3.120.0120.00314.84
7.3.10.0030.00916.44
7.3.00.0070.00716.65
7.2.330.0100.01016.80
7.2.320.0150.00516.75
7.2.310.0120.00616.72
7.2.300.0030.01416.59
7.2.290.0110.01216.77
7.2.130.0090.00716.63
7.2.120.0060.00616.82
7.2.110.0060.00616.75
7.2.100.0070.00916.71
7.2.90.0080.00516.80
7.2.80.0060.01016.84
7.2.70.0050.00916.94
7.2.60.0100.00716.93
7.2.50.0070.00716.89
7.2.40.0040.01116.91
7.2.30.0090.00716.77
7.2.20.0120.00316.72
7.2.10.0060.00816.66
7.2.00.0080.00617.43
7.1.250.0070.00815.68
7.1.240.0060.00915.61
7.1.230.0060.00615.49
7.1.220.0120.00315.59
7.1.210.0090.00915.71
7.1.200.0060.00915.75
7.1.190.0110.00315.50
7.1.180.0090.00615.64
7.1.170.0100.00615.52
7.1.160.0040.01115.61
7.1.150.0060.00815.90
7.1.140.0110.00415.38
7.1.130.0080.00615.43
7.1.120.0090.00915.35
7.1.110.0120.00015.89
7.1.100.0050.00716.93
7.1.90.0040.00915.47
7.1.80.0070.00415.45
7.1.70.0020.00716.32
7.1.60.0060.00617.41
7.1.50.0020.01316.28
7.1.40.0060.00915.58
7.1.30.0170.00015.55
7.1.20.0140.00015.56
7.1.10.0070.00715.41
7.1.00.0100.03719.07
7.0.330.0030.00914.87
7.0.320.0090.00615.21
7.0.310.0030.01315.24
7.0.300.0060.00914.97
7.0.290.0090.00915.29
7.0.280.0090.00615.34
7.0.270.0120.00315.07
7.0.260.0150.00015.20
7.0.250.0070.00715.08
7.0.240.0130.00015.11
7.0.230.0100.00315.45
7.0.220.0150.00015.36
7.0.210.0030.01015.02
7.0.200.0040.00515.91
7.0.190.0040.01115.33
7.0.180.0120.00015.14
7.0.170.0120.00615.22
7.0.160.0070.00715.07
7.0.150.0060.01215.03
7.0.140.0060.04018.62
7.0.130.0000.01115.14
7.0.120.0070.00715.54
7.0.110.0120.00314.97
7.0.100.0080.00814.98
7.0.90.0390.04717.67
7.0.80.0310.03717.72
7.0.70.0260.03217.58
7.0.60.0380.03817.64
7.0.50.0320.03917.80
7.0.40.0080.02916.63
7.0.30.0080.02816.78
7.0.20.0040.03416.68
7.0.10.0050.03916.58
7.0.00.0070.04416.52
5.6.380.0050.00514.17
5.6.370.0120.00414.52
5.6.360.0060.00613.95
5.6.350.0130.00314.32
5.6.340.0090.00314.17
5.6.330.0060.00614.37
5.6.320.0040.00714.16
5.6.310.0040.01114.31
5.6.300.0130.00013.91
5.6.290.0100.00314.09
5.6.280.0070.03717.59
5.6.270.0050.00514.20
5.6.260.0040.00714.21
5.6.250.0060.00614.21
5.6.240.0070.04817.45
5.6.230.0070.04517.61
5.6.220.0080.04317.53
5.6.210.0070.04717.51
5.6.200.0090.04017.66
5.6.190.0080.03817.71
5.6.180.0050.04317.80
5.6.170.0030.04717.56
5.6.160.0080.03817.74
5.6.150.0140.03717.71
5.6.140.0100.03817.71
5.6.130.0060.04617.62
5.6.120.0030.04817.58
5.6.110.0080.04317.75
5.6.100.0050.04517.57
5.6.90.0060.04417.51
5.6.80.0020.04617.22
5.6.70.0040.02517.32
5.6.60.0070.04517.31
5.6.50.0100.03817.18
5.6.40.0070.04217.30
5.6.30.0060.02817.27
5.6.20.0030.04817.25
5.6.10.0100.03517.13
5.6.00.0100.03617.22
5.5.380.0030.04715.75
5.5.370.0020.02615.68
5.5.360.0070.02315.80
5.5.350.0060.04615.72
5.5.340.0020.04616.22
5.5.330.0030.03516.03
5.5.320.0040.04715.99
5.5.310.0080.04215.90
5.5.300.0050.02415.91
5.5.290.0030.02815.89
5.5.280.0050.04515.84
5.5.270.0090.04415.92
5.5.260.0090.03915.78
5.5.250.0080.02315.78
5.5.240.0100.03115.73
5.5.230.0120.03715.55
5.5.220.0070.04015.58
5.5.210.0080.03415.51
5.5.200.0100.03115.58
5.5.190.0100.02415.60
5.5.180.0050.04615.64
5.5.170.0060.00410.90
5.5.160.0060.02615.72
5.5.150.0080.02915.65
5.5.140.0070.03215.68
5.5.130.0070.02615.77
5.5.120.0090.04015.71
5.5.110.0100.03515.68
5.5.100.0050.04315.61
5.5.90.0050.03315.44
5.5.80.0040.03415.58
5.5.70.0090.04615.68
5.5.60.0030.04315.63
5.5.50.0020.04415.56
5.5.40.0050.04215.58
5.5.30.0030.03615.72
5.5.20.0070.04015.66
5.5.10.0090.03615.72
5.5.00.0030.04615.49
5.4.450.0070.04315.11
5.4.440.0080.02615.19
5.4.430.0050.04315.15
5.4.420.0090.02815.13
5.4.410.0120.03315.15
5.4.400.0020.03114.90
5.4.390.0100.01814.91
5.4.380.0050.04014.99
5.4.370.0100.03214.89
5.4.360.0020.04815.01
5.4.350.0050.02515.00
5.4.340.0030.03914.97
5.4.330.0050.00910.90
5.4.320.0060.03414.91
5.4.310.0030.04115.02
5.4.300.0020.04314.96
5.4.290.0030.03715.07
5.4.280.0090.03814.95
5.4.270.0030.03215.06
5.4.260.0050.03715.05
5.4.250.0080.03815.03
5.4.240.0070.03814.98
5.4.230.0070.04115.00
5.4.220.0130.03715.05
5.4.210.0080.02315.02
5.4.200.0030.04114.97
5.4.190.0070.03815.06
5.4.180.0050.02514.88
5.4.170.0050.04114.99
5.4.160.0070.03914.96
5.4.150.0040.02615.00
5.4.140.0040.02413.78
5.4.130.0020.04213.70
5.4.120.0060.03313.75
5.4.110.0030.04313.67
5.4.100.0050.03013.72
5.4.90.0010.03813.64
5.4.80.0060.03913.72
5.4.70.0100.02013.71
5.4.60.0100.03513.61
5.4.50.0060.03813.75
5.4.40.0030.04213.68
5.4.30.0020.04113.70
5.4.20.0050.03213.75
5.4.10.0030.02313.72
5.4.00.0100.02013.51
5.3.290.0040.04612.85
5.3.280.0080.04012.77
5.3.270.0030.03212.76
5.3.260.0150.03012.84
5.3.250.0080.03812.75
5.3.240.0070.02512.75
5.3.230.0090.03512.82
5.3.220.0070.03412.78
5.3.210.0020.02912.71
5.3.200.0090.03812.78
5.3.190.0030.03912.73
5.3.180.0060.03812.74
5.3.170.0070.03512.78
5.3.160.0000.04312.76
5.3.150.0070.03912.72
5.3.140.0030.03012.79
5.3.130.0080.02712.72
5.3.120.0050.04212.74
5.3.110.0080.03512.73
5.3.100.0050.02512.51
5.3.90.0050.03712.45
5.3.80.0050.02812.43
5.3.70.0060.04112.44
5.3.60.0040.04212.43
5.3.50.0090.02112.48
5.3.40.0050.03812.45
5.3.30.0030.03912.38
5.3.20.0080.03312.36
5.3.10.0020.03812.34
5.3.00.0050.03812.28
5.2.170.0080.02810.99
5.2.160.0060.02011.06
5.2.150.0010.02311.07
5.2.140.0020.02511.06
5.2.130.0080.01711.03
5.2.120.0030.03110.94
5.2.110.0050.03311.01
5.2.100.0050.03110.95
5.2.90.0030.03310.97
5.2.80.0000.02510.96
5.2.70.0010.03311.02
5.2.60.0030.03511.03
5.2.50.0050.03311.03
5.2.40.0080.03010.92
5.2.30.0060.03110.99
5.2.20.0050.03010.97
5.2.10.0070.02010.92
5.2.00.0040.02710.81
5.1.60.0030.02710.52
5.1.50.0060.02610.52
5.1.40.0000.02410.49
5.1.30.0050.01910.71
5.1.20.0020.02410.72
5.1.10.0020.02810.55
5.1.00.0020.03110.53
5.0.50.0040.0239.80
5.0.40.0030.0209.71
5.0.30.0030.0339.64
5.0.20.0020.0209.58
5.0.10.0030.0239.62
5.0.00.0030.0309.60
4.4.90.0020.0149.10
4.4.80.0020.0209.10
4.4.70.0020.0189.10
4.4.60.0020.0129.10
4.4.50.0010.0209.10
4.4.40.0040.0269.10
4.4.30.0050.0159.10
4.4.20.0010.0169.10
4.4.10.0050.0169.10
4.4.00.0020.0229.10
4.3.110.0000.0209.10
4.3.100.0000.0239.10
4.3.90.0020.0169.10
4.3.80.0030.0219.10
4.3.70.0020.0209.10
4.3.60.0000.0209.10
4.3.50.0030.0159.10
4.3.40.0030.0179.10
4.3.30.0020.0219.10
4.3.20.0050.0149.10
4.3.10.0050.0189.10
4.3.00.0000.0189.10

preferences:
51.48 ms | 401 KiB | 5 Q