The PHP mb_ereg_search_init() function is an inbuilt function that is used to initialize the multibyte regular expression for a search. It sets the target string and regular expression to be searched using the mb_ereg_search() function.
Syntax:
bool mb_ereg_search_init(
string $string,
?string $pattern = null,
?string $options = null
)
Parameters:
- $string: The string to be searched. This parameter is required.
- $pattern: The regular expression pattern to be used for the search. It is an optional parameter, and if not specified, the previously set pattern will be used.
- $options: The search option. This parameter is optional and its default value is “msr” which stands for “multi-byte”, “single-line”, and “match-start-of-string”. The option can be set to “msri” to include a “case-insensitive” match, or “msrx” to include an “extended regular expression” match.
Return Value: This method returns “true” on success and “false” on failure.
Example 1: The following code shows the working of the PHP mb_ereg_search_init() function.
PHP
<?php // Declare a string $str = "Welcome to neveropen"; // Declare a pattern string $pattern = "neveropen"; // Using mb_ereg_search_init() function mb_ereg_search_init($str, $pattern); // Use mb_ereg_search() function for // multibyte regular expression match // for a predefined multibyte string if (mb_ereg_search()) { echo "Pattern Match found"; } else { echo "Pattern Match not found"; } ?> |
Output:
Pattern Match found
Example 2: This code also shows the working of the above function.
PHP
<?php // Declare the search string $str = "Welcome, Geeks!"; // Non-alphanumeric characters $pattern = "\w+"; // Using the mb_ereg_search_init() function to // search the multibyte regular expression mb_ereg_search_init($str, $pattern); // Perform the search and print the results while ($res = mb_ereg_search_regs()) { echo "Match found: " . $res[0] . "\n"; } ?> |
Output:
Match found: Welcome Match found: Geeks
Reference: https://www.php.net/manual/en/function.mb-ereg-search-init.php
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