Regular
Expressions
101
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Explanation
/
(
[
01
]
[
0
-
9
]
|
2
[
0
-
3
]
)
:
[
0
-
5
]
[
0
-
9
]
/
gmi
1st Capturing Group
(
[
01
]
[
0
-
9
]
|
2
[
0
-
3
]
)
1st Alternative
[
01
]
[
0
-
9
]
Match a single character present in the list below
[
01
]
01
matches a single character in the list
01
(case insensitive)
Match a single character present in the list below
[
0
-
9
]
0-9
matches a single character in the range between
0
(index 48)
and
9
(index 57)
(case insensitive)
2nd Alternative
2
[
0
-
3
]
2
matches the character
2
with index
50
10
(
32
16
or
62
8
) literally (case insensitive)
Match a single character present in the list below
[
0
-
3
]
0-3
matches a single character in the range between
0
(index 48)
and
3
(index 51)
(case insensitive)
:
matches the character
:
with index
58
10
(
3A
16
or
72
8
) literally (case insensitive)
Match a single character present in the list below
[
0
-
5
]
0-5
matches a single character in the range between
0
(index 48)
and
5
(index 53)
(case insensitive)
Match a single character present in the list below
[
0
-
9
]
0-9
matches a single character in the range between
0
(index 48)
and
9
(index 57)
(case insensitive)
↵
matches the character
↵
with index
10
10
(
A
16
or
12
8
) literally (case insensitive)
Global pattern flags
g modifier:
g
lobal. All matches (don't return after first match)
m modifier:
m
ulti line. Causes
^
and
$
to match the begin/end of each line (not only begin/end of string)
i modifier:
i
nsensitive. Case insensitive match (ignores case of
[a-zA-Z]
)
Match Information
Your regular expression does not match the subject string.
Quick Reference
Regular Expression
v1
No Match
/
/
gmi
Test String
Code Generator
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Generated Code
Loading code sample...
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report.
For a full regex reference for PHP, please visit:
http://php.net/manual/en/ref.pcre.php
Regular
Expressions
101
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