salaam
mikhaastaam beporsam ke agaar ma ye textarea daasgteh baashim va bekhaym bebinim ke masalan karbar toye on field ye kalamaro peida konimaz che functioni estefade mikonim
maam noon az raahnemaaeitoon!
اگر در متغیر ذخیره شده میخوای سرچ کنی میتونی با دستور strpos() اینکار رو انجام بدی:
PHP:
<?php
$mystring = 'abc';
$findme = 'a';
$pos = strpos($mystring, $findme);
// Note our use of ===. Simply == would not work as expected
// because the position of 'a' was the 0th (first) character.
if ($pos === false) {
echo "The string '$findme' was not found in the string '$mystring'";
} else {
echo "The string '$findme' was found in the string '$mystring'";
echo " and exists at position $pos";
}
// We can search for the character, ignoring anything before the offset
$newstring = 'abcdef abcdef';
$pos = strpos($newstring, 'a', 1); // $pos = 7, not 0
?>
