I simulated it:
<?php
$text = 'Äpfel';
mb_internal_encoding( 'utf-8' );
printf( "%d\n", mb_eregi( 'äpfel', $text ) ); // Output: 0
printf( "%d\n", mb_ereg( 'äpfel', mb_strtolower( $text ) ) ); // Output: 1
printf( "%d\n", mb_eregi( 'äpfel', mb_strtolower( $text ) ) ); // Output: 1
?>
mb_eregi
(PHP 4 >= 4.2.0, PHP 5)
mb_eregi — Regular expression match ignoring case with multibyte support
Beschreibung
$pattern
, string $string
[, array $regs
] )Executes the case insensitive regular expression match with multibyte support.
Parameter-Liste
Rückgabewerte
Executes the regular expression
match with multibyte support, and returns 1 if matches are found.
If the optional regs parameter was specified, the function
returns the byte length of matched part, and the array
regs will contain the substring of matched
string. The function returns 1 if it matches with the empty
string. If no matches are found or an error happens, FALSE will be
returned.
Anmerkungen
Hinweis:
Das interne Encoding oder das mit mb_regex_encoding() festgelegte Zeichenencoding wird als Zeichenencoding für diese Funktion genutzt.
Siehe auch
- mb_regex_encoding() - Returns current encoding for multibyte regex as string
- mb_ereg() - Regular expression match with multibyte support
This function does not work - it is not case insensitive for non latin characters.
When this function is perfected, and is not experimental, it may be very usefull in the searching and pinpointing of places inside large text files.
