I have string:
$output = "Program: First 0 0 0 0 0 0 0 Program: Second 0 0 0 0 0 Program: Third 0 0 0 0 0 0 0 0";
I need this output:
$output = "Program: First 7 Program: Second 5 Program: Third 8";
I know i can count all "0" occurences with "substr_count", but how i can count specific group of zeros before text "Program"?
This would exactly output what you need. Its not that beautiful, u might find a better solution with google, but that just came into my mind:
<?php
$output = "Program: First 0 0 0 0 0 0 0 Program: Second 0 0 0 0 0 Program: Third 0 0 0 0 0 0 0 0";
$output = explode("Program:", $output);
array_splice($output, 0,1 );
$endString = '';
foreach($output as $elem) {
$count = substr_count($elem, "0");
$elemWithoutZero = str_replace('0', '', $elem);
$endString = $endString . 'Program: ' . $elemWithoutZero . $count . ' ';
}
var_dump($endString);
?>
Output:
string(74) "Program: First 7 Program: Second 5 Program: Third 8"
Anyways if you get that kind of data, you might find a better solution at the place where you create that data.
Can do this:
$output = "Program: First 0 0 0 0 0 0 0 Program: Second 0 0 0 0 0 Program: Third 0 0 0 0 0 0 0 0";
$pieces = explode('Program',$output);
foreach($pieces as $piece){
echo substr_count($piece, '0').PHP_EOL;
}
Output:
0
7
5
8
Other way:
$programs = Array('First','Second','Third');
$output = "Program: First 0 0 0 0 0 0 0 Program: Second 0 0 0 0 0 Program: Third 0 0 0 0 0 0 0 0";
$pieces = explode(' Program:',$output);
$looutput = '';
$i = 0;
foreach($pieces as $piece){
$loutput .= 'Program: '.$programs[$i].' '.substr_count($piece, '0').' ';
$i++;
}
echo $loutput;
Output:
Program: First 7 Program: Second 5 Program: Third 8
substr_count can be provided a maximum length to count till. Simply use strpos to find the index of "Second" and count the 0's to that index. You can also provide 'substr_count' with an offset, so start at the offset for the next range of zeroes.
