stripslashes
Just been caught out by stristr trying to converting the needle from an Int to an ASCII value.
Got round this by casting the value to a string.
<?php
if( !stristr( $file, (string) $myCustomer->getCustomerID() ) ) {
// Permission denied
}
?>
stristr
(PHP 4, PHP 5)
stristr — Lo mismo que strstr() pero sin tener en cuenta mayúsculas o minúsculas
Descripción
string stristr
( string $cadena
, string $caracter
)
Devuelve toda la cadena desde la primera aparición del caracter . Tanto la cadena como el caracter se examinan sin tener en cuenta mayúsculas o minúsculas.
Si no se encuentra el caracter , devuelve FALSE.
Si el caracter no es una cadena, se convierte a entero y se usa como código de un carácter ASCII.
Example #1 Ejemplo de stristr()
<?php
$email = 'USER@EXAMPLE.com';
echo stristr($email, 'e');
// Salida: ER@EXAMPLE.com
?>
Example #2 Comprobar si se encuentra una cadena
<?php
$cadena = 'Hola Mundo';
if(stristr($cadena, 'adios') === FALSE) {
echo 'No se ha encontrado "adios" en la cadena';
}
// Salida: No se ha encontrado "adios" en la cadena
?>
Example #3 Ejemplo de un carácter que no es una cadena
<?php
$cadena = 'MANZANA';
echo stristr($cadena, 97); // 97 = a minuscula
// Salida: MANZANA
?>
Note: Esta función es segura binariamente.
add a note
User Contributed Notesstristr
giz at gbdesign dot net
06-Oct-2007 05:02
06-Oct-2007 05:02
art at awilton dot dotcom
07-Nov-2005 09:17
07-Nov-2005 09:17
handy little bit of code I wrote to take arguments from the command line and parse them for use in my apps.
<?php
$i = implode(" ",$argv); //implode all the settings sent via clie
$e = explode("-",$i); // no lets explode it using our defined seperator '-'
//now lets parse the array and return the parameter name and its setting
// since the input is being sent by the user via the command line
//we will use stristr since we don't care about case sensitivity and
//will convert them as needed later.
while (list($index,$value) = each($e)){
//lets grap the parameter name first using a double reverse string
// to get the begining of the string in the array then reverse it again
// to set it back. we will also "trim" off the "=" sign
$param = rtrim(strrev(stristr(strrev($value),'=')),"=");
//now lets get what the parameter is set to.
// again "trimming" off the = sign
$setting = ltrim(stristr($value,'='),"=");
// now do something with our results.
// let's just echo them out so we can see that everything is working
echo "Array index is ".$index." and value is ".$value."\r\n";
echo "Parameter is ".$param." and is set to ".$setting."\r\n\r\n";
}
?>
when run from the CLI this script returns the following.
[root@fedora4 ~]# php a.php -val1=one -val2=two -val3=three
Array index is 0 and value is a.php
Parameter is and is set to
Array index is 1 and value is val1=one
Parameter is val1 and is set to one
Array index is 2 and value is val2=two
Parameter is val2 and is set to two
Array index is 3 and value is val3=three
Parameter is val3 and is set to three
[root@fedora4 ~]#
triadsebas at triads dot buildtolearn dot net
21-Jul-2005 05:39
21-Jul-2005 05:39
You can use strstr() or stristr() to validate data!
Check this out:
<?php
function validate_email($input) {
if (!stristr($input, '@')) {
return false;
}
return true;
}
function validate_url($input) {
if (!stristr($input, 'http://')) {
return false;
}
return true;
}
?>
Simple example:
<?php
if (!validate_email($_POST['email'])) {
print 'You did not enter a valid email adress';
}
if (!validate_url($_POST['url'])) {
print 'You did not enter a valid url.';
}
?>
notepad at codewalkers dot com
05-Jun-2005 01:02
05-Jun-2005 01:02
<?php
function stristr_reverse($haystack, $needle) {
$pos = stripos($haystack, $needle) + strlen($needle);
return substr($haystack, 0, $pos);
}
$email = 'USER@EXAMPLE.com';
echo stristr_reverse($email, 'er');
// outputs USER
?>
Techdeck at Techdeck dot org
12-Nov-2002 12:26
12-Nov-2002 12:26
An example for the stristr() function:
<?php
$a = "I like php";
if (stristr("$a", "LikE PhP")) {
print ("According to \$a, you like PHP.");
}
?>
It will look in $a for "like php" (NOT case sensetive. though, strstr() is case-sensetive).
For the ones of you who uses linux.. It is similiar to the "grep" command.
Actually.. "grep -i".
dpatton.at.confluence.org
02-Oct-2002 09:36
02-Oct-2002 09:36
There was a change in PHP 4.2.3 that can cause a warning message
to be generated when using stristr(), even though no message was
generated in older versions of PHP.
The following will generate a warning message in 4.0.6 and 4.2.3:
stristr("haystack", "");
OR
$needle = ""; stristr("haystack", $needle);
This will _not_ generate an "Empty Delimiter" warning message in
4.0.6, but _will_ in 4.2.3:
unset($needle); stristr("haystack", $needle);
Here's a URL that documents what was changed:
http://groups.google.ca/groups?selm=cvshholzgra1031224321%40cvsserver