stripcslashes
@henke:
No. It does NOT make a warning if the needle isn't found. This is false.
stripos
(PHP 5)
stripos — Find position of first occurrence of a case-insensitive string
Description
int stripos ( string $haystack, string $needle [, int $offset] )Returns the numeric position of the first occurrence of needle in the haystack string. Unlike strpos(), stripos() is case-insensitive.
Note that the needle may be a string of one or more characters.
If needle is not found, stripos() will return boolean FALSE.
Varování
Tato funkce může vracet booleovskou hodnotu FALSE, ale také nebooleovskou hodnotu odpovídající ohodnocení FALSE, například 0 nebo "". Čtěte prosím sekci o typu Boolean, kde najdete více informací. Pro testování návratové hodnoty této funkce použijte operátor ===.
Příklad 2117. stripos() examples
<?php
$findme = 'a';
$mystring1 = 'xyz';
$mystring2 = 'ABC';
$pos1 = stripos($mystring1, $findme);
$pos2 = stripos($mystring2, $findme);
// Nope, 'a' is certainly not in 'xyz'
if ($pos1 === false) {
echo "The string '$findme' was not found in the string '$mystring1'";
}
// Note our use of ===. Simply == would not work as expected
// because the position of 'a' is the 0th (first) character.
if ($pos2 !== false) {
echo "We found '$findme' in '$mystring2' at position $pos2";
}
?>
If needle is not a string, it is converted to an integer and applied as the ordinal value of a character.
The optional offset parameter allows you to specify which character in haystack to start searching. The position returned is still relative to the beginning of haystack.
Poznámka: Tato funkce je binárně bezpečná.
See also strpos(), strrpos(), strrchr(), substr(), stristr(), strstr(), strripos() and str_ireplace().
add a note
User Contributed Notesstripos
Ysangkok
06-Mar-2008 07:44
06-Mar-2008 07:44
henke at henke37 dot cjb dot net
09-Dec-2007 10:48
09-Dec-2007 10:48
This function will raise a warning if the needle was not found. Be sure to use @ to suppress it if you want the strpos like behavior of only returning false.
hpavon at gmail dot com
19-Jul-2007 12:54
19-Jul-2007 12:54
To shane_at_51smith-dot-nl
Fine but not useful if you want to use stripos 3rd param òffset´ for instance to find all occurences of `needle´.
Again rchillet and heavyraptor solution is best though you'd better keep to-lowercase strings outside the function if you're planning to loop through `haystack´ like this:
$lower_haystack = strtolower($haystack);
$lower_needle = strtolower($needle);
$offset = 0;
//... looping over haystack
while ($offset !== false) {
$offset = strpos($lower_haystack, $lower_needle, $offset);
//... some funny stuff here
}
Using rchillet-heavyraptor function here would slow down performance. Solution: don't invent any function
shane_at_51smith-dot-nl
03-Jul-2007 12:46
03-Jul-2007 12:46
Yet another stripos for php4 alternative:
<?php
function stripos($haystack, $needle){
return strpos($haystack, stristr( $haystack, $needle ));
}
$strTest = "The brown fox jumped over the Fence";
echo stripos($strTest, 'fence');//30
?>
grf at post dot cz
20-Mar-2007 05:57
20-Mar-2007 05:57
(i'm very sorry for some mistakes in my yesterday's post :'[ )
this would to work with any language, i hope.
tested on czech (eastern europe) lang.
<?php
/****************************************
* SAFE HIGHLIGHT
****************************************/
/**
* function finds and encase every string in a $needleArr array with
* strings $shearLft (from the left side) and $shearRgt (guess from which
* side).
* already encased needles are IGNORED for any other step, so order
* of needles in $needleArr is pretty important.
*
* function is searching needles in case-insensitive mode,
* but case in the subject is saved.
*
* can you do it better? so, do it.
*
* @param array $needleArr array of needles
* @param string $shearLft left shear
* @param string $shearRgt right shear
* @param string $subject subject
* @param string $encoding encoding ('utf-8' is default)
*
* @author griffin
*/
function safeHighlight( $needleArr, $shearLft, $shearRgt, $subject, $encoding = 'utf-8')
{
// encoding
$e = $encoding;
// oh, no needles
if( !is_array( $needleArr))
return $subject;
// empty keys throw-off, only unique, reindex
$nA = array_values(
array_unique(
array_diff( $needleArr, array(''))
)
);
// needle count
if( !($nC = count( $nA)))
return $subject; // nothing to hl
// shear length
if( !(($rLL = mb_strlen( $rL = $shearLft, $e))
+ ($rRL = mb_strlen( $rR = $shearRgt, $e))))
return $subject; // no shears
// subject length
if( !($sL = mb_strlen( $s = $subject, $e)))
return null; // empty subject
// subject in lowercase (we need to aviod
// using mb_stripos due to PHP version)
$sW = mb_strtolower( $s, $e);
// masking ~ 0=not changed, 1=changed
$m = str_repeat( '0', $sL);
// loop for each needle
for( $n=0; $n<$nC; $n++)
{
// needle string loWercase
$nW = mb_strtolower( $nA[ $n], $e);
$o = 0; // offset
$nL = mb_strlen( $nW, $e); // needle length
// search needle
while( false !== ($p = mb_strpos( $sW, $nW, $o, $e)))
{
// oh hurrey, needle found on $p position
// is founded needle already modified? (in full-length)
for( $q=$p; $q<($p+$nL); $q++)
if( $m[ $q])
{
// ai, caramba. already modified, jump over
$o+= $nL;
// continue for while() loop - not for for() loop!
continue 2;
}
// explode subject and mask into three parts
// partA|needle|partB
$sE[0] = mb_substr( $s, 0, $p, $e);
$sE[1] = mb_substr( $s, $p, $nL, $e);
$sE[2] = mb_substr( $s, $p+$nL, $sL-$p-$nL, $e);
// mask
// partA|partB (needle not needed)
$mE[0] = mb_substr( $m, 0, $p, $e);
$mE[1] = mb_substr( $m, $p+$nL, $sL-$p-$nL, $e);
// apply shears
$sE[1] = $rL.$sE[1].$rR;
// update sunject length
$sL+= $rLL + $rRL;
// update mask
$m = $mE[0] . str_repeat( '1', $rLL + $nL + $rRL) . $mE[1];
// implode into a subject
$s = implode( $sE);
// update lowercase subject
$sW = mb_strtolower( $s, $e);
// increase offset
$o+= $rLL + $nL + $rRL;
// end of string reached
if( $o>=$sL)
break;
} // while()
} // for( $n=0; $n<$nC; $n++)
// oouu yeaaa, kick the subject out of the function
return $s;
} // function safeHighlight()
/****************************************
* END: SAFE HIGHLIGHT
****************************************/
?>
dazzle
16-Aug-2006 07:20
16-Aug-2006 07:20
I recommend using the solution by rchillet for <PHP5
michiels solution is quite slow if you use it for long strings or call it many times.
michiel at mb-it dot nl
10-Jul-2006 04:03
10-Jul-2006 04:03
Since the stripos-function is PHP5-only, the function below could give PHP4-users the same functionallity:
function stripos($string,$word)
{
$retval = false;
for($i=0;$i<=strlen($string);$i++)
{
if (strtolower(substr($string,$i,strlen($word))) == strtolower($word))
{
$retval = true;
}
}
return $retval;
}
rchillet at hotmail dot com
28-Apr-2006 01:45
28-Apr-2006 01:45
improvement the function of heavyraptor with int offset parametre.
if (!function_exists("stripos")) {
function stripos($str,$needle,$offset=0)
{
return strpos(strtolower($str),strtolower($needle),$offset);
}
}
heavyraptor
21-Mar-2006 06:59
21-Mar-2006 06:59
If you're using PHP < 5, you can use this alternate function, same thing like stripos:
<?php
if (!function_exists("stripos")) {
function stripos($str,$needle) {
return strpos(strtolower($str),strtolower($needle));
}
}
?>
Such a logical function but I hope it helps ...
sim
02-Oct-2004 10:17
02-Oct-2004 10:17
Just to be explicit, the position index returned by strpos starts at 0, not 1. e.g. strpos('abc','a') returns 0.
aidan at php dot net
30-May-2004 10:36
30-May-2004 10:36
This functionality is now implemented in the PEAR package PHP_Compat.
More information about using this function without upgrading your version of PHP can be found on the below link:
http://pear.php.net/package/PHP_Compat