PHP Classes

String to boolean search string: Convert boolean expression to Google search syntax

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Version License PHP version Categories
boolean-string 1.0BSD License5PHP 5, Searching, Text processing
Description 

Author

Aditya Sarkar

This class can convert boolean expression to Google search syntax.

It takes as parameter a text string that defines an expression that combines text values using AND, OR, NOT and XOR boolean operators.

The class converts the string to represent the same expression using the Google search syntax using quotes, braces, + and - operators.

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Example

<?php
require("class.boolean_string.php");

//echo $sourcestring = '"chief officer" AND "PSV" OR "platform supply"';
echo $sourcestring = '"chief officer" AND "platform AND supply" OR "psv" not iam NOT "you" and ("find" or "set") not iii and "you" or "he" AND all NOT candy AND andy and xor AND "xxor"';
//echo $sourcestring = 'xor and nor';
echo '<br>';

$boolStrObj = new StrToBooleanStr($sourcestring);
echo $boolStrObj->convertStrToBoolean();



  Files folder image Files (2)  
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Plain text file class.boolean_string.php Class class boolean_string.php
Accessible without login Plain text file index.php Example index.php

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