How can I edit elemet in array -> $vstup[1][1]='m' ? That's not how it works. The element on [1] [1] is still '.'

<?php
$string= '.....
.....
.XXX.
.....
.....';

$vstup=explode("\n",$string);
$pocetRadku = count($vstup);

for($i=0; $i<$pocetRadku; $i  )
{
    $vstup[$i]=str_split($vstup[$i]);
}
/* with \n */
$pocetSloupcu = count($vstup[0]);

/* delete \n */
for($i=0; $i<$pocetRadku-1;$i  )
{
    unset($vstup[$i][$pocetSloupcu-1]);
}

 
$vstup[1][1]=='m';
print_r($vstup);

CodePudding user response：

Instead of

$vstup[1][1]=='m';

Use

$vstup[1][1] = 'm';

Not 2 equlas sign, use just one = for assignment.