<?php
// IF ONLY CHARACTER IN STRINGS
$str = "Hello PHP";
echo str_replace("PHP","",$str); // its remove PHP From string
//Output = Hello;
// IF NUMARIC OR CHARACTERS IN STRING AND YOU NEED ONLY STRING
$strInt = "124Peter56";
echo $words = preg_replace('/[0-9]+/', '', $strInt); // it remove integer from string
// Output = Peter;
// IF NUMARIC OR CHARACTERS IN STRING AND YOU NEED ONLY INTEGERS
$strInt = "124Peter56";
echo $res = preg_replace("/[^0-9]/", "", $strInt ); // It Remove all string
// Output = 12456
?>

s = 'ab12abc34ba'
print(s.replace('ab', ''))

s = 'abc12321cba'
print(s.replace('a', ''))
#result
'bc12321cb'

"Str*ing With Chars I! don't want".replace('!','').replace('*','')

original_string = "This is a 'string' with single quotes."
modified_string = original_string.replace("'", "")
print(modified_string)

string TrimWordsFromString(string value, int numberOfWords, char separator, bool reverse)
{	int trimmedWords = 0; int index = 0; while(trimmedWords != numberOfWords) {	if(value == string.Empty) {	return string.Empty; } if(reverse) {	index = value.Length - 1; } if(value[index] == separator) {	trimmedWords++; } value = value.Remove(index, 1); } return value;
}

public extractLetters(String str){	String result="";	for(int i= 0; i< str.length; i++){ if(Character.isLetter(str.charAt(i))){ result+=str.charAt(i);	}	}

public class RemoveCharacter
{ public static void main(String[] args) { String MyString = "Hello World"; System.out.println("The string before removing character: " + MyString); MyString = MyString.replace("e", ""); System.out.println("The string after removing character: " + MyString); }
}

StringBuilder sb = new StringBuilder(inputString);