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PORegex for identifying all kinds of spaces to be used as a delimiter for exploding a string into an array?
 

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  1. PORegex for identifying all kinds of spaces to be used as a delimiter for exploding a string into an array?
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    <p>I'm not proficient with regular expressions so when I needed to identify if a paragraph (post excerpt in Wordpress) started with the word "by" and if it did to apply a CSS class to the word "by" and the next two words I did so by exploding the string into an array delimited by space, manipulating the array and then imploding it.</p> <p>Something weird is happening though. The " " delimiter doesn't work on all spaces (and there are no double spaces being used). Are there multiple versions of the space character out there? </p> <p>Shouldn't my whole site have the same encoding type and therefore there only be one space character?</p> <p>If I edit one of the problem posts and delete the first couple of spaces and replace them with new spaces, the code works fine.</p> <p>My code is below (I know I declared a lot of variables): The part under the elseif{ is specifically what I was describing, but I pasted the whole conditional block for reference.</p> <pre><code>$byLine = strtolower(string_limit_words(get_the_excerpt(),1)); $storySnippet = string_limit_words(get_the_excerpt(),16); $storyExplode = explode(' ', $storySnippet); if (($byLine=="by") &amp;&amp; strtolower($storyExplode[3])=="and") { $storySlice = array_slice($storyExplode, 6); $storyLast = implode(' ', $storySlice); ?&gt; &lt;a href="&lt;?php the_permalink(); ?&gt;" class="byline"&gt; &lt;?php echo string_limit_words(get_the_excerpt(),6); ?&gt;&lt;/a&gt; &lt;?php echo " ".$storyLast."&amp;hellip;"; } elseif ($byLine=="by") { $storySlice = array_slice($storyExplode, 3); $storyLast = implode(' ', $storySlice); ?&gt; &lt;a href="&lt;?php the_permalink(); ?&gt;" style="color:#888;font-style:italic;font-size:90%;"&gt; &lt;?php echo string_limit_words(get_the_excerpt(),3); ?&gt;&lt;/a&gt; &lt;?php echo" ".$storyLast."&amp;hellip;"; } else { echo string_limit_words(get_the_excerpt(),16)."&amp;hellip;"; } </code></pre> <p>EDIT:</p> <p>Currently using <strong>preg_split('|\s+|', $storySnippet)</strong> instead of exploding the array with ' ', but I'm still experiencing the same problem. </p> <p><a href="http://advocatedaily.com" rel="nofollow">Live on adovatedaily.com, 3rd entry under the "opinion" column</a> halfway down the page.</p> <p>EDITx2:</p> <p>Converted one of the problem strings to hex. "By Jen" converts to <strong>4279c2a04a656e</strong>. There's no <strong>20</strong> in there and there appears to be an extra character.. what gives?</p>
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    1. COHave you tried `preg_split('/\s+/', $str);` instead of `explode(' ', $str);` ?
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    2. COStill doesn't work with /\s+/ or |\s+|, it's like the author of the test in the string isn't using regular spaces.. could these be spaces in a different language, under a different encoding type?
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    3. COYou can check with a hex editor, spaces are `20` in hex format.
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