<?php
/**
* String
* @desc Fluently designed String Class with common string operations
* @example
# formatting
$str = new String("This is a test string");
$str->replace(" ", "_")->camelCased();
echo "\nCAMELCASED: ";
echo $str;
echo "\nUNDERSCORED: ";
$str->underScored();
echo $str;
# inserting
$str = new String("This is a test string");
$str->indexOf("test")->insert("statement");
echo "\nINSERTING: ";
echo $str;
# cutting
$str = new String("This is a test string");
$str->cutBetween(4, 10, "...");
echo "\nCUTTING: ";
echo $str;
# appending
$str = new String("This is a test string");
$str->append("...");
echo "\nAPPENDING: ";
echo $str;
# prepending
$str = new String("This is a test string");
$str->prepend("-->");
echo "\nPREPENDING: ";
echo $str;
# padding
$str = new String("This is a test string");
$str->pad(40, "*");
echo "\nPADDING BOTH: ";
echo $str;
$str = new String("This is a test string");
$str->padLeft(30, "_");
echo "\nPADDING LEFT: ";
echo $str;
$str = new String("This is a test string");
$str->padRight(30, "_");
echo "\nPADDING RIGHT: ";
echo $str;
# combining
$str = new String("This is a test string");
$str->cutBetween(4, 10,"...")->padRight(30, "_");
echo "\nCOMBINING: ";
echo $str;
# combining
$str = new String("This is a test string");
$bStartsWith = $str->startsWith("This");
echo "\nCHECKS:\n";
echo "StartsWith ";
echo $bStartsWith;
$str = new String("This is a test string");
$bEndsWith = $str->endsWith("string");
echo "\nEndsWith ";
echo $bEndsWith;
echo "\nOTHERS\n";
$str = new String();
$str->concat(array("This","is","a","test","string"));
echo "\nConcat ";
echo $str;
$str = new String();
$str->concat(array("This","is","a","test","string"),"_")->camelCased();
echo "\nCombination ";
echo $str;
* @author Thomas Schaefer
*/
class String {
private $error;
private $length;
private $string = "";
private $array = array();
private $index = 0;
private $indexOf = false;
public function __construct($string="") {
$this->string = $string;
$this->Length();
}
/**
* concat
* @desc concatenate array of strings
* @param array $array
* @param string $separator
* @return void
*/
public function concat($array, $separator=""){
$this->string = implode($separator, $array);
return $this;
}
/**
* Length
* @return int
*/
private function Length(){
$this->length = strlen($this->string);
return $this;
}
/**
* getLength
* @return int
*/
public function getLength(){
return $this->length;
}
/**
* toUpper
* @return void
*/
public function toUpper(){
$this->string = strtoupper($this->string);
return $this;
}
/**
* toLower
* @return void
*/
public function toLower(){
$this->string = strtolower($this->string);
return $this;
}
/**
* split
* @desc split a string into parts
* @param string $separator
* @return void
*/
public function split($separator){
$this->array = explode($separator, $this->string);
return $this;
}
/**
* indexOf
* @find first occurence position of a string part
* @param string $find
* @return void
*/
public function indexOf($find){
$this->indexOf = true;
$this->index = strpos($this->string, $find);
return $this;
}
/**
* lastIndexOf
* @desc find last occurence position of a string part
* @param string $find
* @return void
*/
public function lastIndexOf($find){
$this->indexOf = true;
$this->index = strrpos($this->string, $find);
return $this;
}
/**
* padLeft
* @param int $pad_length
* @param string $pad_string
* @return void
*/
public function padLeft($pad_length, $pad_string="*"){
$this->string = str_pad($this->string, $pad_length, $pad_string, STR_PAD_LEFT);
return $this;
}
/**
* padRight
* @param int $pad_length
* @param string $pad_string
* @return void
*/
public function padRight($pad_length, $pad_string="*"){
$this->string = str_pad($this->string, $pad_length, $pad_string, STR_PAD_RIGHT);
return $this;
}
/**
* pad
* @desc pad string left and right
* @param int $pad_length
* @param string $pad_string
* @return void
*/
public function pad($pad_length, $pad_string="*"){
$this->string = str_pad($this->string, $pad_length, $pad_string, STR_PAD_BOTH);
return $this;
}
/**
* startsWith
* @param string $search
* @return bool
*/
public function startsWith($search){
return (substr($this->string,0, strlen($search))==$search?true:false);
}
/**
* endsWith
* @param string $search
* @return bool
*/
public function endsWith($search){
return (substr($this->string,-(strlen($search)))==$search?true:false);
}
/**
* cut
* @param integer $from
* @param integer $to optional
*/
public function cut($from = 0, $to = null) {
$this->string (String::cutting($this->string, $from, $to));
return $this;
}
/**
* cutBetween
* @param integer $minLength
* @param integer $maxStringLength
* @param string $placeholder
* @return void;
*/
public function cutBetween($minLength = 8, $maxStringLength = 20, $placeHolder = "…") {
$string = $this->string;
if (strlen($string) > $maxStringLength and $minLength * 3 < strlen($string)) {
$string = String::cutting($string, 0, $minLength) . $placeHolder . String::cutting($string, - $minLength);
$this->string = $string;
}
return $this;
}
/**
* cutting
* @static
* @param string $string
* @param int $from
* @param int $to
* @return string
*/
public static function cutting($string, $from, $to = null) {
if ($to)
return substr($string, $from, $to);
return substr($string, $from);
}
/**
* insert
* @desc prepending indexOf needed
* @param string $valueToInsert
* @return void
*/
public function insert($valueToInsert){
if($this->indexOf){
$this->string = substr($this->string, 0, $this->index) . $valueToInsert . substr($this->string, $this->index);
} else {
$this->error = new Exception("insert expects an index.");
}
return $this;
}
/**
* append
* @param string $string
* @return void
*/
public function append($string){
$this->string .= $string;
return $this;
}
/**
* prepend
* @param string $string
* @return void
*/
public function prepend($string){
$this->string = $string . $this->string;
return $this;
}
/**
*
* @param string $look search string
* @param string $by replace string
* @return void
*/
public function replace($look, $by){
$this->string = str_replace($look,$by, $this->string);
return $this;
}
/**
* trim
* @return void
*/
public function trim() {
$this->string = trim($this->string);
return $this;
}
/**
* underScored
* @param string $word
* @return string
*/
public function underScored() {
$tmp = String::preplace($this->string, array (
'/([A-Z]+)([A-Z][a-z])/' => '\\1_\\2',
'/([a-z\d])([A-Z])/' => '\\1_\\2'
));
$this->string = strtolower($tmp);
return $this;
}
/**
* camelCased
* @param string $lower_case_and_underscored_word
* @return string
*/
public function camelCased() {
$this->string = str_replace(" ", "", ucwords(str_replace("_", " ", $this->string)));
return $this;
}
/**
* helper method
*
* @param string $search
* @param string $replacePairs
* @return string
*/
protected static function preplace($search, $replacePairs) {
return preg_replace(array_keys($replacePairs), array_values($replacePairs), $search);
}
/**
*
* @return string
*/
public function __toString(){
if($this->error instanceof Exception){
return $this->error;
} elseif(count($this->array)){
return $this->array;
}
return $this->string;
}
}
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