custom substr php

Question

With the following string:

$string='some text <photo id="id#" /> some text';

Make a substr that if the end of its string is a part of

<photo id="id#" />

then apply an extra chunk to complete

"<photo id="id#" />"

Example:

substr($string,0,15);

result is:

some text <phot

If this happens I need to end up with:

some text <photo id="id#" />

He, can't find the way of doing this. by the way id# is a random numeric value whose length won't exceed 3 chars. If regex is necessary to come up with a function.

The tag you need to care of is just photo or yuou have to care about different ones too? — Eineki, Aug 28 '12 at 17:44
Please refrain from parsing HTML with RegEx as it will [drive you į̷̷͚̤̤̖̱̦͍͗̒̈̅̄̎n̨͖͓̹͍͎͔͈̝̲͐ͪ͛̃̄͛ṣ̷̵̞̦ͤ̅̉̋ͪ͑͛ͥ͜a̷̘͖̮͔͎͛̇̏̒͆̆͘n͇͔̤̼͙̩͖̭ͤ͋̉͌͟eͥ͒͆ͧͨ̽͞҉̹͍̳̻͢](http://stackoverflow.com/questions/1732348/regex-match-open-tags-except-xhtml-self-contained-tags/1732454#1732454). Use an [HTML parser](http://stackoverflow.com/questions/292926/robust-mature-html-parser-for-php) instead. — Madara's Ghost, Aug 28 '12 at 18:19

score 2 · Accepted Answer · answered Aug 29 '12 at 07:32

See this:-

output:-

enter image description here

<?php

$str= 'some text <photo id="#xx"/> some test';
$parts = preg_split('~(</?[\w][^>]*>)~', $str, -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY);
echo '<pre>';
print_r($parts);
echo htmlentities($parts[1]);


$str_new= 'some text <photo id="#xx"></photo> some test';
$parts_new = preg_split('~(</?[\w][^>]*>)~', $str_new, -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY);
echo '<pre>';
print_r($parts_new);
echo htmlentities($parts_new[1]);
echo htmlentities($parts_new[2]);

?>

score 0 · Answer 2 · answered Aug 28 '12 at 19:27

0

No need to use regex, just use the PHP string functions:

$string = 'some text <photo id="id#" /> some text';
$newString = substr($string, 0, strpos($string, '>') + 1);

answered Aug 28 '12 at 19:27

Alex Kalicki

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custom substr php

2 Answers2