I have an array of mixed values:
$row = array('Unspecified risk','Yes','8','3','2','13','none','-1,49','-2,51','-1,46','-1,54'); -1,94 -1,55
As you can see it contains text and both negative and positive comma-numbers.
I need to convert the numeric values to the right number format and leave the text values as is.
Now I'm looping over the values:
foreach ($row as $value) {
// If $value is numeric, convert it to the
// right number format for use with MySQL (decimal(10,2))
// If not, leave it be.
}
Two related questions I've investigated but cannot find a suitable solution.
Could anyone provide a practical example?
$twoDecNum = sprintf('%0.2f', round($number, 2)); The rounding correctly rounds the number and the sprintf forces it to 2 decimal places if it happens to to be only 1 decimal place after rounding. Show activity on this post. This will give you 2 number after decimal.
The number_format() function is an inbuilt function in PHP which is used to format a number with grouped thousands. It returns the formatted number on success otherwise it gives E_WARNING on failure. Syntax: string number_format ( $number, $decimals, $decimalpoint, $sep )
You don't need to use regular expressions.
use str_replace()
as you need to replace the ','
for a '.'
, and then use intval()
or floatval()
functions to get the numeric value. You can also use strstr()
to look for the '.'
and decide if using intval()
or floatval()
Example:
$row = array('Unspecified risk', 'Yes', '8', '3', '2', '13', 'none', '-1,49', '-2,51', '-1,46', '-1,54');
function toNumber($target){
$switched = str_replace(',', '.', $target);
if(is_numeric($target)){
return intval($target);
}elseif(is_numeric($switched)){
return floatval($switched);
} else {
return $target;
}
}
$row = array_map('toNumber', $row);
var_dump($row);
We use str_replace() to replace the dot for the comma, this way it's a international notation float, even if it's on string, this way later on we can check if it's numeric with is_numeric()
<-- this function is awesome as it detects from a string if it's a number or not, no matter integer or float etc.
We use the is_numeric to check if the value is integer float or text and return the corresponding value using intval()
or floatval()
(the value without the replace applied will not return as a valid numeric, only after switching the , and . it will return true as numeric).
We use $row = array_map('toNumber', $row);
to apply the changes to the array.
Profit xD
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