How to extract values from arrays. How to solve the problem by using the values in the array, such as selectcount (*)..... the result should have only one value. now there is only one value in an array. how can we get it?
How to extract values from Arrays
Solution
For example, select count (*)... the result should have only one value. now there is only one value in an array. how can we obtain it?
Prerequisites: You do not know the array key name and cannot use a digital index.
Reference answer
Array_values
Reference answer
Take a look at the usage of mysql_result () in the manual. it is more convenient to use a single value.
Reference answer
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Array_values
The returned value of this function is array, and the value is not directly obtained.
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I don't know what to say ,,
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Mysql_fetch_row ()//
$ Arr [0];
?>
Do not forget: mysql_fetch_row usage ..
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Current
(PHP 3, PHP 4, PHP 5)
Current -- returns the current unit in the array.
Description
Mixed current (array & array)
Reference answer
Original post published by Yu An on [url = http://bbs.111cn.cn/redirect.php? Goto = findpost & pid = 812910 & ptid = 100203] link Mark [img] http://bbs.111cn.cn/images/common/back.gif?/img=#/url]
Do not forget: mysql_fetch_row usage ..
Unfortunately, mysql is useless.
Reference answer
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Current
(PHP 3, PHP 4, PHP 5)
Current -- returns the current unit in the array.
Description
Mixed current (array & array)
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Reference answer
There are many methods, such:
Array_shift
Array_pop
This function can all implement the functions you need.
Explain how to solve the logic of values from the array, such as select count (*)..... the result should have only one value. now there is only one value in an array. how can we get it out...
