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mb_ereg_search_pos

Description

Returns position and length of a matched part of the multibyte regular expression for a predefined multibyte string

Syntax

mb_ereg_search_pos(
    ?string $pattern = null,
    ?string $options = null
): array|false

Parameters

pattern

The search pattern.

options

The search option.

OptionDescription
iAmbiguity match on
xEnables extended pattern form
m'.' matches with newlines
s'^' -> '\A', '$' -> '\Z'
pSame as both the m and s options
lFinds longest matches
nIgnores empty matches

Return

An array containing two elements. The first element is the offset, in bytes, where the match begins relative to the start of the search string, and the second element is the length in bytes of the match.

If an error occurs, false is returned.

Examples

1 · void

<?

$string = '🐘string';
$pattern = '🐘(st(r(i)ng))';

mb_ereg_search_init($string, $pattern);

$return = mb_ereg_search_pos();

var_export($return);

?>
array (
  0 => 0,
  1 => 10,
)

2 · pattern

<?

$string = '🐘string';

mb_ereg_search_init($string);

$pattern = '🐘(st(r(i)ng))';

$return = mb_ereg_search_pos($pattern);

var_export($return);

?>
array (
  0 => 0,
  1 => 10,
)

3 · options · i

<?

$string = '🐘string';

mb_ereg_search_init($string);

$pattern = '🐘STRING';
$options = 'i';

$return = mb_ereg_search_pos($pattern, $options);

var_export($return);

?>
array (
  0 => 0,
  1 => 10,
)

4 · options · x

<?

$string = '🐘string';

mb_ereg_search_init($string);

$pattern = '🐘 s t r i n g';
$options = 'x';

$return = mb_ereg_search_pos($pattern, $options);

var_export($return);

?>
array (
  0 => 0,
  1 => 10,
)

5 · options · m

<?

$string = '
🐘string';

mb_ereg_search_init($string);

$pattern = '.🐘string';
$options = 'm';

$return = mb_ereg_search_pos($pattern, $options);

var_export($return);

?>
array (
  0 => 0,
  1 => 11,
)

6 · options · s

<?

$string = '🐘string';

mb_ereg_search_init($string);

$pattern = '^🐘string$';
$options = 's';

$return = mb_ereg_search_pos($pattern, $options);

var_export($return);

?>
array (
  0 => 0,
  1 => 10,
)

7 · options · p

<?

$string = '
🐘string';

mb_ereg_search_init($string);

$pattern = '^.🐘string$';
$options = 'p';

$return = mb_ereg_search_pos($pattern, $options);

var_export($return);

?>
array (
  0 => 0,
  1 => 11,
)

8 · options · l

<?

$string = '🐘stringtring';

mb_ereg_search_init($string);

$pattern = '🐘.*tring';
$options = 'l';

$return = mb_ereg_search_pos($pattern, $options);

var_export($return);

?>
array (
  0 => 0,
  1 => 15,
)

9 · options · n

<?

$string = '🐘string';

mb_ereg_search_init($string);

$pattern = '';
$options = 'n';

$return = mb_ereg_search_pos($pattern, $options);

var_export($return);

?>
false
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