PHP preg_split adds a blank array key that can't be cleared by array_filter because there's a 'space' in it

PHP preg_split adds a blank array key that can't be cleared by array_filter because there's a 'space' in it

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PHP preg_split adds a blank array key that can't be cleared by array_filter because there's a 'space' in it
Tag : php , By : MJRider
Date : December 05 2020, 12:18 PM

seems to work fine You can use preg_split with the PREG_SPLIT_NO_EMPTY flag to remove completely empty values from the output, but you also need to include whitespace adjacent to newlines in your regex to avoid getting lines which just have spaces in them in your output. This will work ($p is copied from your demo):
$arr  = preg_split('/[\r\n]+\s*/', $p, -1, PREG_SPLIT_NO_EMPTY);
Array (
    [0] => Dummy text
    [1] => more dummy text after some lines
    [2] => even more dummy text 

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Why datagridview adds additional 2 blank rows when the bounded datatable only adds 1 row

Tag : vb.net , By : leorick
Date : March 29 2020, 07:55 AM
wish helps you I think its adding additional row because of this line: m_table.Rows.Add(newRow)
Because newRow.item will add new row to the table

Plotting point on top of filled contour plot adds lots of blank space

Tag : python , By : Shitic
Date : March 29 2020, 07:55 AM
wish helps you If the axis auto-scaling mode isn't explicitly specified, plot will use "loose" autoscaling and contourf will use "tight" autoscaling.
The same things happens for non-polar axes. E.g.
import matplotlib.pyplot as plt
import numpy as np

plt.plot([7], [7], 'ro')

preg_split in php to split string at the point which is preceded by digit and is followed by letters or blank space

Tag : php , By : HokieGeek
Date : March 29 2020, 07:55 AM
seems to work fine This may be optimized if you answer my question in the comment.
Pattern: ~(?<=[0-9])[*/ ]*(?=[a-z]+)~i
$strings=['12jan','12 jan','12    jan','12/jan','12//jan','12/jan','12*/jan','12*//jan'];

foreach($strings as $string){
    var_export(preg_split('~(?<=[0-9])[*/ ]*(?=[a-z]+)~i',$string));
    echo "\n";
    var_export(preg_split('~\d+\K[*/ ]*~',$string));
    echo "\n";
    var_export(preg_match('~(\d+)[/* ]*([a-z]+)~i',$string,$out)?array_slice($out,1):'fail');
    echo "\n";
    var_export(preg_match('~(\d+)[/* ]*(.+)~',$string,$out)?array_slice($out,1):'fail');
    echo "\n";
    echo "\n---\n";

array_filter adds additional index in my array, how to get rid of it?

Tag : php , By : kalfa
Date : March 29 2020, 07:55 AM
will help you I have a array created from json , Instead of
echo json_encode($filteredResult);
echo json_encode(array_values($filteredResult));

Angular + Typescript: Add to array, ng-repeat adds blank row

Tag : html , By : Karina
Date : March 29 2020, 07:55 AM
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