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how to check if a string contains a character

Eeeeeean 
$a = 'Hello world?';

if (strpos($a, 'Hello') !== false) { //PAY ATTENTION TO !==, not !=
    echo 'true';
}
if (stripos($a, 'HELLO') !== false) { //Case insensitive
    echo 'true';
}
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3.5
6
Hamish Lawson 105 points 

                                    if (string.contains(character)

3.5 (6 Votes)
0
3.25
4
Sarath 95 points 

                                     /*
    This method returns true if the given string contains
    the char n. It is necessary due to the
    obsolescence of some compilers, which requires us
    to write our own contains method.
    */
    public static boolean contains_char (String main, char secondary)
    {
        boolean contains_result = false;
        for (int i = 0 ; i < input.length () ; i++)
        {
            if (input.charAt (i) == secondary)
            {
                contains_result = true;
                break;
            }
        }
        return contains_result;
    }

/*
for two chars:
*/
public static boolean contains_dualchar (String main, String secondary)
    {
        boolean contains_result = false;
        for (int i = 0 ; i < input.length () ; i++)
        {
            if (input.charAt (i) == secondary.charAt (0))
            {
                if (input.charAt (i + 1) == secondary.charAt (1))
                {
                    contains_result = true;
                    break;
                }
            }
        }
        return contains_result;
    }

3.25 (4 Votes)
0
3.9
10
Ryo Hirai 125 points 

                                    stringVariable.includes("Your Text");

3.9 (10 Votes)
0
4
4
Mineking116 125 points 

                                    public static boolean containsIgnoreCase(String str, char c) {
        str = str.toLowerCase();

        for (int i = 0; i < str.length(); i++) {
            if (str.charAt(i) == Character.toLowerCase(c)) {
                return true;
            }
        }
        
        return false;
    }

4 (4 Votes)
0
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