I get differents results, anyone could tell me why?
RegExp:
[0-9]+(?:\s){0,10}(?:\r?\n?)([0-9]{1,2}):([0-9]{1,2}):([0-9]{1,2}),([0-9]{1,3}) --> ([0-9]{1,2}):([0-9]{1,2}):([0-9]{1,2}),([0-9]{1,3})(?:\s){0,10}(?:\r\n|\n|\r){1}(.*\r?\n?.*\r?\n?.*)(?:\n|\r)(?:\n|\r)
On Regex101 I use 'gm' modifiers.
On PHP I use:
preg_match_all($this->Pattern, $txt, $matches, PREG_SET_ORDER);
Regex101 result (look match 4 - this is correct. Pattern get only empty line, without any "time line text"):
MATCH 1
1.  [2-4]   `00`
2.  [5-7]   `00`
3.  [8-10]  `01`
4.  [11-14] `163`
5.  [19-21] `00`
6.  [22-24] `00`
7.  [25-27] `05`
8.  [28-31] `150`
9.  [32-39] `aaaaaaa`
MATCH 2
1.  [43-45] `00`
2.  [46-48] `00`
3.  [49-51] `05`
4.  [52-55] `556`
5.  [60-62] `00`
6.  [63-65] `00`
7.  [66-68] `05`
8.  [69-72] `921`
9.  [73-82] `bbbb
bbbb`
MATCH 3
1.  [86-88] `00`
2.  [89-91] `00`
3.  [92-94] `07`
4.  [95-98] `753`
5.  [103-105]   `00`
6.  [106-108]   `00`
7.  [109-111]   `08`
8.  [112-115]   `168`
9.  [116-130]   `cccccccccccccc`
MATCH 4
1.  [134-136]   `00`
2.  [137-139]   `00`
3.  [140-142]   `22`
4.  [143-146]   `854`
5.  [151-153]   `00`
6.  [154-156]   `00`
7.  [157-159]   `28`
8.  [160-163]   `721`
9.  [164-164]   ``
MATCH 5
1.  [168-170]   `00`
2.  [171-173]   `00`
3.  [174-176]   `23`
4.  [177-180]   `336`
5.  [185-187]   `00`
6.  [188-190]   `00`
7.  [191-193]   `31`
8.  [194-197]   `558`
9.  [198-228]   `dddddddddddddd
dddddddddddddd
`
MATCH 6
1.  [232-234]   `00`
2.  [235-237]   `00`
3.  [238-240]   `34`
4.  [241-244]   `228`
5.  [249-251]   `00`
6.  [252-254]   `00`
7.  [255-257]   `36`
8.  [258-261]   `296`
9.  [262-276]   `eeeeeeeeeeeeee`
MATCH 7
1.  [280-282]   `00`
2.  [283-285]   `00`
3.  [286-288]   `35`
4.  [289-292]   `165`
5.  [297-299]   `00`
6.  [300-302]   `00`
7.  [303-305]   `39`
8.  [306-309]   `785`
9.  [310-320]   `fffff
ffff`
My Server Results (look at "[3] => Array", pattern gets two "time lines"):
(
    [0] => Array
        (
            [0] => 1
00:00:01,163 --> 00:00:05,150
aaaaaaa
2
            [1] => 00
            [2] => 00
            [3] => 01
            [4] => 163
            [5] => 00
            [6] => 00
            [7] => 05
            [8] => 150
            [9] => aaaaaaa
2
        )
    [1] => Array
        (
            [0] => 00:00:05,556 --> 00:00:05,921
bbbb
bbbb
            [1] => 0
            [2] => 00
            [3] => 05
            [4] => 556
            [5] => 00
            [6] => 00
            [7] => 05
            [8] => 921
            [9] => bbbb
bbbb
        )
    [2] => Array
        (
            [0] => 3
00:00:07,753 --> 00:00:08,168
cccccccccccccc
4
            [1] => 00
            [2] => 00
            [3] => 07
            [4] => 753
            [5] => 00
            [6] => 00
            [7] => 08
            [8] => 168
            [9] => cccccccccccccc
4
        )
    [3] => Array
        (
            [0] => 00:00:22,854 --> 00:00:28,721
5
00:00:23,336 --> 00:00:31,558
dddddddddddddd
            [1] => 0
            [2] => 00
            [3] => 22
            [4] => 854
            [5] => 00
            [6] => 00
            [7] => 28
            [8] => 721
            [9] => 5
00:00:23,336 --> 00:00:31,558
dddddddddddddd
        )
    [4] => Array
        (
            [0] => 6
00:00:34,228 --> 00:00:36,296
eeeeeeeeeeeeee
7
            [1] => 00
            [2] => 00
            [3] => 34
            [4] => 228
            [5] => 00
            [6] => 00
            [7] => 36
            [8] => 296
            [9] => eeeeeeeeeeeeee
7
        )
    [5] => Array
        (
            [0] => 00:00:35,165 --> 00:00:39,785
fffff
ffff
            [1] => 0
            [2] => 00
            [3] => 35
            [4] => 165
            [5] => 00
            [6] => 00
            [7] => 39
            [8] => 785
            [9] => fffff
ffff
        )
)
Test String:
1
00:00:01,163 --> 00:00:05,150
aaaaaaa
2
00:00:05,556 --> 00:00:05,921
bbbb
bbbb
3
00:00:07,753 --> 00:00:08,168
cccccccccccccc
4
00:00:22,854 --> 00:00:28,721
5
00:00:23,336 --> 00:00:31,558
dddddddddddddd
dddddddddddddd
6
00:00:34,228 --> 00:00:36,296
eeeeeeeeeeeeee
7
00:00:35,165 --> 00:00:39,785
fffff
ffff
 
    