@split <delimiter>, <string>
Splits the string into an array using the specified delimiter.
Alias: @explode
“,” @split “a,b,c” // result: [ a, b, c ]
@length <string>
Returns the length of a string.
@length abc
> 3
@substr <string>, <start>, <length>
Returns a substring from the given string.
$a: @substr “abcde”, 1, 3
@echo $a
> bcd
@str_pos <haystack>, <needle>
Returns the position of the first occurrence of a substring.
@strpos abcbdbe, b // return 1
@str_m_pos <haystack>, <needle>
Returns all matched positions (case-sensitive).
@strpos abcbdbe, b // return [1,3,5]
@str_i_pos <haystack>, <needle>
Returns the first position of a substring (case-insensitive).
@strpos abcbdbe, B // return 1
@str_m_i_pos <haystack>, <needle>
Returns all positions of needle in haystack (case-insensitive).
@strpos abcbdbe, B // return [1,3,5]
@str_to_lower <string>
Converts the string to lowercase.
@str_to_lower Hello World // return “hello world”
@str_to_upper <string>
Converts the string to uppercase.
@str_to_lower Hello World // return “HELLO WORLD”
@is_preg_match $pattern, $subject, $is_unicode
Check if the string `$subject` matches the regular expression `$pattern`.
– pattern: Regular expression pattern (e.g. /abc/, or /[\p{L}]/u for Unicode).
– subject: The string to test.
– is_unicode (default false): If true, treat pattern as Unicode.
Returns true if at least one match is found, otherwise false.
@is_preg_match ”[a-z], “abc”, false
@echo $?
> true
@preg_replace_all <pattern>, <replacement>, <subject>, <is_unicode>
Replace all occurrences matching <pattern> in <subject> with <replacement>.
– pattern: Regular expression pattern (e.g. /[0-9]+/).
– replacement: Replacement string.
– subject: The input string.
– is_unicode (default false): If true, treat pattern as Unicode.
Returns the string after replacements.
@preg_match_all “/[a-z]/”, “abc”, false
@print $@
> arr:
> [
> 0 => a
> 1 => b
> 2 => c
> ]
@preg_match_all <pattern>, <subject>, <is_unicode>
Find all substrings in `$subject` that match the regular expression `$pattern`.
– pattern: Regular expression pattern (e.g. /[a-z]/ or /[\p{L}]/u).
– subject: The string to search.
– is_unicode (default false): If true, treat pattern as Unicode.
@preg_replace_all “/[\\p{L}]/u”, “*”, Привет-мир
, false
@echo $?
> ******-***