Intro
In search, i want to make search for age range.
if a user inserts a '-' included input like 10-30 this way i will display list of people age greater than 10 and less than 30.
My Question
$q = mysql_real_escape_string(htmlspecialchars("user input from search field"));
From here before entering to make query i want to make two conditions, One: if there's a '-' in user input or not ? if yes i want to query as according, if not the other way.
So, how can i enter into the first condition ?
This will work:
// use strpos() because strstr() uses more resources
if(strpos("user input from search field", "-") === false)
{
// not found provides a boolean false so you NEED the ===
}
else
{
// found can mean "found at position 0", "found at position 19", etc...
}
What NOT to do
if(!strpos("user input from search field", "-"))
The example above will screw you over because strpos() can return a 0 (zero) which is a valid string position just as it is a valid array position.
This is why it is absolutely mandatory to check for === false
Simply use this strstr function :
$string= 'some string with - values ';
if(strstr($string, '-')){
echo 'symbol is isset';
}
