PHP explode function find last child - php

Question

I have a php plugin that explodes one line into several lines.
$graph_lines = explode( ";", $content );
$output= '';
$output .= '<ul class="lpd-bullet-list';
if($image){
$output .= ' lpd-bl-custom-icon';
}
if($style){
$output .= ' '.esc_attr($style);
}
$output .= '">';
foreach ($graph_lines as $line) {
if($line){
$output .= '<li>';
$output .= $image;
$output .= $line;
$output .= ';';
$output .= '</li>';
}
}
$output .= '</ul>';
echo $output;
After each line in the end it set ; Thats OK, but how to set . for last element? Is it possible?
Mey be i need to use end() function or another?
Help me please!

Answer 1

I am not very sure about your output but yes you can use end function like this:
$last_index = end(array_keys($graph_lines));
foreach ($graph_lines as $index => $line) {
if ($index == $last_index) {
// last index
} else {
// perform other tasks
}
}
Alternatively, you can use like this:
foreach ($graph_lines as $line) {
if($line){
$output .= '<li>';
$output .= $image;
$output .= $line;
$output .= ';';
if (next($graph_lines)==false) $output .= '.';//not sure where you put it.
$output .= '</li>';
}
}

Answer 2

You can get the number of line sizeof($graph_lines) and create a counter in your foreach.
Exemple :
$numberofline = sizeof($graph_lines);
$i=0;
foreach ($graph_lines as $line) {
if($line){
$i++;
$endofline=";";
if($i==$numberofline)
{
$endofline=".";
}
$output .= '<li>';
$output .= $image;
$output .= $line;
$output .= $endofline;
$output .= '</li>';
}
}

Answer 3

$content = "a;b;c;d;s;r;t;g";
$content = rtrim($content, ";");
$content = ltrim($content, ";");
$graph_lines = explode(";", $content);
$output = '';
$output .= '<ul class="lpd-bullet-list">';
$last = count($graph_lines) - 1;
$i = 0;
foreach ($graph_lines as $line) {
if ($line) {
$output .= '<li>';
$output .= $line;
$output .= ($last == $i)? '.' : ";";
$output .= '</li>';
$i++;
}
}
$output .= '</ul>';
echo $output;

Answer 4

You can use an shorthand IF to check if the current line is matching the last element in the array.
foreach ($graph_lines as $line) {
if($line){
$output .= '<li>';
$output .= $image;
$output .= $line;
$output .= ( $line === end ( $graph_lines ) ) ? '.' : ';';
$output .= '</li>';
}
}
An other way is to set a counter and check if the counter is equal to the count() of $graph_lines.
$counter = 1;
$total_items = count ( $graph_lines );
foreach ( $graph_lines as $line ) {
// do your stuff.
$output .= ( $counter === $total_items ) ? '.' : ';';
$counter++;
}

Answer 5

Count the array. and check that with the $i.
$count = count($graph_lines);
$i = 0;
foreach ($graph_lines as $line) {
if ($line) {
if ($i == $count) {
$output .= '<li>';
$output .= $image;
$output .= $line;
$output .= '.';
$output .= '</li>';
} else {
$output .= '<li>';
$output .= $image;
$output .= $line;
$output .= ';';
$output .= '</li>';
}
}
$i++;
}