Preg_match在文本框值中查找％

Question

i have a textbox value i have to find out the % symbol in the textvalue can anyone suggest me how to do that ?

i have a textbox that contains some value and i have to find out whether that textbox contain % symbol or not

$camp_ttllimpression=$_POST['camp_ttllimpression'];
$camp_ttllclicks=$_POST['camp_ttllclicks'];
$camp_ttlleads=$_POST['camp_ttlleads'];
$camp_ttllsales=$_POST['camp_ttllsales'];
$hid=$_POST['hid'];
$camp_cpa_amnt=$_POST['camp_cpa_amnt'];
$camp_cpm_amnt=$_POST['camp_cpm_amnt'];
$camp_cpc_amnt=$_POST['camp_cpc_amnt'];
$camp_cpl_amnt=$_POST['camp_cpl_amnt'];
$camp_cpm_budgt=($camp_ttllimpression * $camp_cpm_amnt)/1000;
$camp_cpc_budgt=$camp_ttllclicks * $camp_cpc_amnt;
$camp_cpl_budgt=$camp_ttlleads * $camp_cpl_amnt;
$camp_cpa_budgt=$camp_ttllsales * $camp_cpa_amnt;
if($hid=="%") { echo Open;} else { echo $camp_cpa_budgt;}

Answer 1

Substitute the correct key for $_POST['textfield'] since it isn't clear from your question. preg_match() is not needed-- this is better done with simple string operations.

// To find out if it contains a % anywhere...
if (strpos($_POST['texfield'], '%') !== FALSE) {
   // Contais a %
}

// To find out if it contains only a %
if ($_POST['texfield'] === '%') {
   // Contains only %
}