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I have this code for parsing RSS to HTML.

<?php $channel_desc = $channel->getElementsByTagName('description') ->item(0) ->childNodes ->item(0) ->nodeValue;

I want to get only 150 characters from the first description. How can I limit the length output?

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  • limit what? nodeValue? Add the xml url, that would be better to understand. Commented Mar 21, 2018 at 2:28
  • What do you mean by "the length output"? Do you mean "the length of the output"? Or something else? Can you elaborate? Commented Mar 15, 2024 at 20:38

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You can use the "substr" function of PHP to extract the first 150 characters of any given string.

$channel_desc = substr($channel->getElementsByTagName('description') ->item(0)->childNodes->item(0)->nodeValue,0,150);

Refer to substr.

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Use:

<?php // Single-byte strings $channel_desc = substr($channel_desc, 0, 150); // Multi-byte strings (UTF-8 support - multi-language support) $channel_desc = mb_substr($channel_desc, 0, 150);

You can use the substr PHP function to trim the string length. 0 is the starting position and 150 is the length.

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