String Helpers to insert text inline with simple and easy methods.

stringHelper.php

<?php


/**
 * Helper Function to insert text after a set string is found.
 * Insert Text from the head of the string After the Needle
 *
 * @param string $haystack
 * @param string $needle
 * @param string $insertText
 * @return string
 */
function insertHeadAfter(string $haystack, string $needle, string $insertText) {

	// Find the FIRST occurrence of the Needle in the Given Haystack
	$pos = strpos($haystack, $needle) + strlen($needle);

	if($pos === false) return $haystack;

	// Grab all of the Text from the start to the end of the needle
	$output = substr($haystack, 0, $pos);

	// Insert Text
	$output .= $insertText;

	// Add the rest of the string
	$output .= substr($haystack, $pos);

	return $output;
}

/**
 * Helper Function to insert text before a set string is found at the end of the string.
 * Insert Text from the tail of the string Before the Needle
 *
 * @param string $haystack
 * @param string $needle
 * @param string $insertText
 * @return string
 */
function insertTailBefore(string $haystack, string $needle, string $insertText) {

	// Find the LAST occurrence of the Needle in the Given Haystack
	$pos = strrpos($haystack, $needle);

	if($pos === false) return $haystack;

	// Grab all of the Text from the start to the end of the needle
	$output = substr($haystack, 0, $pos);

	// Insert Text
	$output .= $insertText;

	// Add the rest of the string
	$output .= substr($haystack, $pos);

	return $output;
}

?>