CODEWITHSUNDEEP
phpmysql
user1091882
user1091882

Reputation:

Replace certain words in multiple strings PHP

I have a database of strings and a database of words and their corrections. I need to find the words within the strings and replace them with their corrections. I cannot figure out how to do it and have it loop through all of the strings in the database. I need help.

I was thinking along the lines of the following pseudo code"

//while loop to grab all the strings from db

//add all the words to look for to an array
//add all of the word replacements to an array

//preg replace or str replace the words with the replacements in the string.

Any ideas?

Upvotes: 0

Views: 675

Answers (2)

hafichuk
hafichuk

Reputation: 10771

I would take a look at using strtr. This takes a string (sentence) as the first parameter and an array of key/value pairs as replacement text.

<?php

$sentence = "The quick brown fox jumps over the lazy dog";
$replacements = array("quick" => "fast", "brown" => "white", "fox" => "hair");

echo strtr($sentence, $replacements);

Yields:

The fast white hair jumps over the lazy dog

I would also read up on Tokenization if you are not familiar with it as a concept. It may help you understand the underlying logic behind how this works.

Upvotes: 1

Jon Egeland
Jon Egeland

Reputation: 12613

If you put all of the strings into an array $orig, all of the words into an array $words, and all of the corrections in to an array $corrections, you can just do this:

$corrected = str_replace($words, $corrections, $orig);

Here is the documentation on str_replace.

Upvotes: 0

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