大约有 6,000 项符合查询结果（耗时：0.0263秒） [XML]
Format number to 2 decimal places
...
How about
CAST(2229.999 AS DECIMAL(6,2))
to get a decimal with 2 decimal places
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How to solve PHP error 'Notice: Array to string conversion in…'
...string conversion in yourfile on line 3
?>
You have 2 options, either cast your PHP array to String using an array to string converter or suppress the PHP Notice.
Correction 1: use the builtin php function print_r or var_dump:
http://php.net/manual/en/function.print-r.php or http://php.net/ma...
What are the best PHP input sanitizing functions?
... expect a number, make sure the submitted data is a number. You can also cast user data into other types. Everything submitted is initially treated like a string, so forcing known-numeric data into being an integer or float makes sanitization fast and painless.
What about free-form text fields an...
JSON Array iteration in Android/Java
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You are using the same Cast object for every entry.
On each iteration you just changed the same object instead creating a new one.
This code should fix it:
JSONArray jCastArr = jObj.getJSONArray("abridged_cast");
ArrayList<Cast> castList= n...
json_encode/json_decode - returns stdClass instead of Array in PHP
...eturned:
$array = json_decode($json, true);
Many people might prefer to cast the results instead:
$array = (array)json_decode($json);
It might be more clear to read.
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“’” showing on page instead of “ ' ”
...h several SQL queries like this...
UPDATE MyTable SET
MyField1 = CONVERT(CAST(CONVERT(MyField1 USING latin1) AS BINARY) USING utf8),
MyField2 = CONVERT(CAST(CONVERT(MyField2 USING latin1) AS BINARY) USING utf8);
Do this for as many tables/columns as necessary.
You can also fix some of these st...
Coalesce function for PHP?
... implicitly converted to a boolean. So make sure you brush up on your type casting rules
– DanMan
May 24 '14 at 11:48
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How do I compare two DateTime objects in PHP 5.2.8?
...a really wicked way to treat these cases, no other language (as I know of) casts to numbers when you have two strings to compare. It really screws your code if you actually want to make a lexicographical comparison.
– MaxArt
Apr 15 '16 at 14:53
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Most used parts of Boost [closed]
When I discovered boost::lexical_cast I thought to myself "why didn't I know about this sooner!" - I hated having to write code like
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What is stdClass in PHP?
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stdClass is just a generic 'empty' class that's used when casting other types to objects. Despite what the other two answers say, stdClass is not the base class for objects in PHP. This can be demonstrated fairly easily:
class Foo{}
$foo = new Foo();
echo ($foo instanceof stdClass...