PHP MongoDB->insert - fatal error with utf8

Question

An annoying encoding error worries about a new dataset in a mongoDB insert and stops my script when there is a encoding issue?

       PHP Fatal error: Uncaught exception 'MongoException' with message 'non-utf8 string: ü'

How to fix the new dataset before the PHP driver breaks?

Is there a better idea than utf8_encode any string data, even those that are already utf8?

atulmy · Accepted Answer · 2014-08-18 12:36:09Z

5

Had the same issue. This works:

$string = mb_convert_encoding($string, 'ISO-8859-1', 'UTF-8');

answered Aug 18, 2014 at 12:36

atulmy

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Sammaye · Accepted Answer · 2013-01-07 22:34:52Z

2

utf8_encode() ( http://php.net/manual/en/function.utf8-encode.php ) since the default PHP encoding is still not utf8 yet I think (not sure about PHP 5.4).

answered Jan 7, 2013 at 22:34

Sammaye

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6 Comments

datasage Over a year ago

UTF-8 wont be the default encoding until PHP 6 (whenever that gets released)

DaveRandom Over a year ago

utf8_encode() is rarely the answer to anything, it can only cope with input in ISO-8859-1. Use iconv() or mb_convert_encoding() and specify the input data encoding explicitly.

Sammaye Over a year ago

@DaveRandom Sorry realised what you said now

DaveRandom Over a year ago

@datasage The feature list for PHP6 is a complete unknown. Anything you read about it online is wrong, the original PHP6 branch was merged back to 5.x a long time ago. Regardless, the input will be in the format in which it was provided - if it's a string literal and the PHP script file is saved as UTF8, the data will be UTF8. If it comes from user input and the input it UTF8, it will be UTF8. Strings in PHP are just byte sequences, they are character set agnostic (which is exactly why mbstring exists).

ledy Over a year ago

If my script is not the source of all the data that is inserted, it's pretty hard to iconv/mb_convert_encoding for sure. Why can't all string be ASCII, no special chars, no Umlauts etc. :/

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