Req #51335 [NEW]: Search first substring from list
From:
Operating system:
PHP version: Irrelevant
Package: Strings related
Bug Type: Feature/Change Request
Bug description:Search first substring from list
Description:
------------
If we want to search first substrings from list, we should make multiple
calls to strpos() for each substring. Using PCRE will slowdown performance.
So, we need some new function like:
int strpos_array(string $haystack, array $needles, string &$found [, int
$offset = 0 ])
which will accept array of substrings in $needle, search first position of
them. If nothing found then returns FALSE. If found any substring then
assign it to $found and return its position.
The function name is not important. Other functions for case-insensitive
search and/or for reverse search (stripos_array, strrpos_array,
strripos_array) also useful.
Extending function strpos() to accept array in $needle is not good due to
&$found parameter.
Good example of using such function is writing parser of some data like SQL
dump. Performance of the function should be higher then PCRE.
Test script:
---------------
$string = 'foo;bar::baz-qwe';
$search = array('-', ';', '::');
$pos = strpos_array($string, $search, $found, 5);
if ($pos === false) {
echo "Nothing found";
}
else {
echo "Found '$found' at $pos";
}
Expected result:
----------------
Found '::' at 7
--
Edit bug report at http://bugs.php.net/bug.php?id=51335&edit=1
--
Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=51335&r=trysnapshot52
Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=51335&r=trysnapshot53
Try a snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=51335&r=trysnapshot60
Fixed in SVN: http://bugs.php.net/fix.php?id=51335&r=fixed
Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=51335&r=needdocs
Fixed in release: http://bugs.php.net/fix.php?id=51335&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=51335&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=51335&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=51335&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=51335&r=support
Expected behavior: http://bugs.php.net/fix.php?id=51335&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=51335&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=51335&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=51335&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=51335&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=51335&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=51335&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=51335&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=51335&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=51335&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=51335&r=mysqlcfg
Thread (5 messages)
- vovan-ve at yandex dot ru