How to handle double quotes in string before XPath evaluation?

by

PHP has Xpath 1.0, if you have a string with double and single quotes, a workaround is using the Xpath concat() function. A helper function can decide when to use what. Example/Usage:

xpath_string('I lowe "double" quotes.');
// xpath:    'I lowe "double" quotes.'

xpath_string('It\'s my life.');
// xpath:    "It's my life."

xpath_string('Say: "Hello\'sen".');
// xpath:    concat('Say: "Hello', "'", "'sen".')

The helper function:

/**
 * xpath string handling xpath 1.0 "quoting"
 *
 * @param string $input
 * @return string
 */
function xpath_string($input) {

    if (false === strpos($input, "'")) {
        return "'$input'";
    }

    if (false === strpos($input, '"')) {
        return "\"$input\"";
    }

    return "concat('" . strtr($input, array("'" => '\', "\'", \'')) . "')";
}

More Related Contents:

  1. Single quotes or double quotes for variable concatenation? [closed]
  2. PHP quotes inside quotes
  3. What is the difference between single-quoted and double-quoted strings in PHP?
  4. How can I combine two strings together in PHP?
  5. How to generate all permutations of a string in PHP?
  6. Remove multiple whitespaces
  7. PHP convert string to hex and hex to string
  8. Converting an integer to a string in PHP
  9. How to select first 10 words of a sentence?
  10. PHP substring extraction. Get the string before the first ‘/’ or the whole string
  11. Is a new line = \n OR \r\n?
  12. Title case a string containing one or more last names while handling names with apostrophes
  13. PHP String to Float
  14. Escape string to use in mail()
  15. How can I split a string in PHP at the nth occurrence of a needle?
  16. Getting the first character of a string with $str[0]
  17. Will XPath 2.0 and/or XSLT 2.0 be implemented in PHP?
  18. PHP: Split multibyte string (word) into separate characters
  19. What does the b in front of string literals do?
  20. Highlight keywords in a paragraph
  21. Search and replace multiple values with multiple/different values in PHP5?
  22. Explode string into array with no empty elements?
  23. Get the sum of all digits in a numeric string
  24. Reverse the letters in each word of a string
  25. How to separate letters and digits from a string in php
  26. PHP get values from SimpleXMLElement array
  27. How does PHP compare strings with comparison operators?
  28. Write CSV To File Without Enclosures In PHP
  29. Format 32-character string with hyphens to become UUID
  30. finding common prefix of array of strings

Leave a Comment