I have a while loop fetching a row and I'm trying to create a structure so that each row will create 2 links. The first is a German word and the second being an English one. The output I'm getting is repeated as if the row isn't being incremented. I've narrowed it down to this:
PHP:
while ($row = $database->row()->fetch()) {
foreach ($row as $value) {
$this->data .= $value . "!";
}
list($this->pid, $this->german, $this->english) = explode("!", $this->data);
$this->links .= "$this->german<br/>$this->english<br/>";
}
Output:
die Männer
men
die Männer
men
$row = array();
while ($row = $database->row()->fetch()) {
$row[] = $row;
}
foreach ($row as $value)
{
$this->data .= $value . "!";
list($this->pid, $this->german, $this->english) = explode("!", $this->data);
$this->links .= "$this->german<br/>$this->english<br/>";
}
I've solved the problem by looking at the keys and creating variables based on a simple matched string test. If anyone can improve my answer I would like to hear it. Thanks.
PHP:
while ($row = $database->row()->fetch()) {
while(list($key, $value) = each($row)) {
if ($key == "PID") {
$this->pid = $value;
}
if ($key == "german") {
$this->german = $value;
}
if ($key == "english") {
$this->english = $value;
}
}
$this->links .= "$this->german<br/>$this->english<br/>";
}
Related
in view I can fetch all categories:
<?php foreach ($this->parent_categories as $category): ?>
<?php endforeach ?>
Now controller:
$data['parent_categories'] = $this->category_model->get_parent_categories_tree($category);
and finally model category:
//get parent categories tree
public function get_parent_categories_tree($category, $only_visible = true)
{
if (empty($category)) {
return array();
}
//get cached data
$key = "parent_categories_tree_all";
if ($only_visible == true) {
$key = "parent_categories_tree";
}
$key = $key . "_lang_" . $this->selected_lang->id;
$result_cache = get_cached_data($this, $key, "st");
if (!empty($result_cache)) {
if (!empty($result_cache[$category->id])) {
return $result_cache[$category->id];
}
} else {
$result_cache = array();
}
$parent_tree = $category->parent_tree;
$ids = array();
$str_sort = "";
if (!empty($parent_tree)) {
$array = explode(',', $parent_tree);
if (!empty($array)) {
foreach ($array as $item) {
array_push($ids, intval($item));
if ($str_sort == "") {
$str_sort = intval($item);
} else {
$str_sort .= "," . intval($item);
}
}
}
}
if (!in_array($category->id, $ids)) {
array_push($ids, $category->id);
if ($str_sort == "") {
$str_sort = $category->id;
} else {
$str_sort .= "," . $category->id;
}
}
$this->build_query($this->selected_lang->id, true);
$this->db->where_in('categories.id', $ids, FALSE);
if ($only_visible == true) {
$this->db->where('categories.visibility', 1);
}
$this->db->order_by('FIELD(id, ' . $str_sort . ')');
$result = $this->db->get('categories')->result();
$result_cache[$category->id] = $result;
set_cache_data($this, $key, $result_cache, "st");
return $result;
}
but the problem is currently I fetch with this code all categories without limit. How to get first 10 records?
I try:
$result = $this->db->get('categories', 10)->result();
But this not work and still fetch all categories. Can anyone help me resolve this issue? Maybe I do something wrong. Thanks for check.
How do I return the column name in mysqli by row?
...
$result = $mysqli->query("SELECT * FROM `xtdf` WHERE posterid='bike'");
$rows=mysqli_fetch_array($result);
foreach($rows as $column => $value) {
echo $column . " " . $value;
}
...
This code above will return all columns name and values, but I want only the column name by the value. I have tried this code below but returns nothing.
...
$result = $mysqli->query("SELECT * FROM `xtdf` WHERE posterid='bike'");
$rows=mysqli_fetch_array($result);
foreach($rows as $column => $value) {
if ($value == "bike") {
echo $column;
}
}
Edit: I don't want put the result in array, or bring all results. Only return one value.
PHP version: 5.5.15
What should I do?
This should do the trick
while($row=mysqli_fetch_array($result)) {
foreach($row as $column => $value) {
if ($value == "bike") {
echo $column;
}
}
}
You need to iterate through all values that you fetch from database.
Try This:
while($rows=mysqli_fetch_assoc($result)){
foreach($rows as $column => $value) {
if ($value == "bike") {
echo $column;
}
}
}
good luck
I have the following array:
$array = [
['2017-02-26', '2017-02-27'],
['2017-03-01'],
['2017-01-01', '2017-01-02', '2017-01-03', '2017-01-04'],
['2017-01-05', '2017-01-06', '2017-01-07']
];
I'm looking to loop into this array to have something like this:
// When several dates
From 2017-02-26 to 2017-02-27.
// When only one date
On the 2017-03-01.
What I tried:
foreach ($array as $key => $value) {
$count = count($array[$key]);
if($count==1) {
echo "On the $key[$value]";
}
else {
$first = reset($array);
$last = end($array);
echo "From ".$first." to ".$last.;
}
}
But it doesn't work when there is only one date in the row.
You are looping by foreach() so it will display last echo string .Store result to one variable Eg($display) will be more easy to display that
$display = "";
foreach ($array as $key => $value) {
$count = count($array[$key]);
if($count==1) {
$display .= "On the $value[0] <br>";
}
else {
$first = $value[0];
$last = $value[$count-1];
$display .= "From ".$first." to ".$last."<br>";
}
}
echo $display;
Try this:-
foreach ($array as $key => $value) {
$count = count($value);
if($count==1) {
echo "On the ".$value[0];
}
else {
$first = reset($value);
$last = end($value);
echo "From ".$first." to ".$last;
}
}
Or just copy paste this code, it will work. Your main inside array to play with is $value.
i am at the point in my script where i want to insert data into my database after looping through an associative array.
the code works so far but since i am new to programming i wish to know if there is a more efficient alternative way of doing what i am doing, since i will be adding more elseif's when my array grows, and also the fact that i am querying my database after every iteration.
foreach($database as $key=>$value) {
foreach($value as $field => $cell){
if ($field =='itemid') {
echo "the item id is $cell";
$col1 = $cell ;
}
elseif ($field =='title') {
echo "the title is $cell";
$col2 = $cell;
}
elseif ($field =='starttime') {
echo "the start time is $cell";
$col3 = $cell;
}
}
$query = "INSERT INTO cordless_drill(itemid,title,starttime) VALUES ('$col1','$col2','$col3')";
mysqli_query($dbc,$query);
}
// here is a code snippet
// $db = new MyDbClass();
// $db->insert->('cordless_drill', $cell); // where $cell is holding key/value pairs
public function insert($table, $obj) {
return $this->query("INSERT INTO ".$table.$this->obj2KeyValue($obj));
}
private function obj2KeyValue($obj) {
$i = count($obj);
$k = ""; $v = "";
$init = false;
$sql = " SET ";
while (list($k, $v) = each($obj)) {
if ($v != "") {
$v = $this->mysqli->real_escape_string($v);
if ($init) $sql .= ", ";
else $init = true;
$sql .= $k.'="'.$v.'"';
}
}
return $sql;
}
public function query($q) {
if ($this->debug) {
$logFile = "sql_query.log";
$handle = fopen($logFile, "a+");
$data = $q."\n";
fwrite($handle, $data);
fclose($handle);
}
return $this->mysqli->query($q);
}
Just got this code working for 2 levels of my menu. But I want it to work with unlimited levels.
Do any of you guys have an idea where to start?
Right now if I type in more levels in the database it says "Undefined index Linnk & Label Line 29", and the new parent that has been entered does not show up.
$sql = "SELECT id, label, link_url, parent_id FROM dyn_menu ORDER BY parent_id, id ASC";
$items = mysql_query($sql);
while ($obj = mysql_fetch_object($items)) {
if ($obj->parent_id == 0) {
$parent_menu[$obj->id]['label'] = $obj->label;
$parent_menu[$obj->id]['link'] = $obj->link_url;
} else {
$sub_menu[$obj->id]['parent'] = $obj->parent_id;
$sub_menu[$obj->id]['label'] = $obj->label;
$sub_menu[$obj->id]['link'] = $obj->link_url;
if (!isset($parent_menu[$obj->parent_id]['count'])) {
$parent_menu[$obj->parent_id]['count'] = 0;
}
$parent_menu[$obj->parent_id]['count']++;
}
}
mysql_free_result($items);
function dyn_menu($parent_array, $sub_array, $qs_val = "menu", $main_id = "nav", $sub_id = "subnav", $extra_style = "foldout") {
$menu = "<ul id=\"".$main_id."\">\n";
foreach ($parent_array as $pkey => $pval) {
if (!empty($pval['count'])) {
$menu .= " <li><a class=\"".$extra_style."\" href=\"".$pval['link']."?".$qs_val."=".$pkey."\">".$pval['label']."</a></li>\n";
} else {
$menu .= " <li>".$pval['label']."</li>\n";
}
if (!empty($_REQUEST[$qs_val])) {
$menu .= "<ul id=\"".$sub_id."\">\n";
foreach ($sub_array as $sval) {
if ($pkey == $_REQUEST[$qs_val] && $pkey == $sval['parent']) {
$menu .= "<li>".$sval['label']."</li>\n";
}
}
$menu .= "</ul>\n";
}
}
$menu .= "</ul>\n";
return $menu;
}
function rebuild_link($link, $parent_var, $parent_val) {
$link_parts = explode("?", $link);
$base_var = "?".$parent_var."=".$parent_val;
if (!empty($link_parts[1])) {
$link_parts[1] = str_replace("&", "##", $link_parts[1]);
$parts = explode("##", $link_parts[1]);
$newParts = array();
foreach ($parts as $val) {
$val_parts = explode("=", $val);
if ($val_parts[0] != $parent_var) {
array_push($newParts, $val);
}
}
if (count($newParts) != 0) {
$qs = "&".implode("&", $newParts);
}
return $link_parts[0].$base_var.$qs;
} else {
return $link_parts[0].$base_var;
}
}
echo dyn_menu($parent_menu, $sub_menu, "menu", "nav", "subnav");
In order to do this, you'll want to use a recursive function to handle your array -> list transformation.
Here's an example:
<?php
function arrToUl($arr) {
$out = '<ul>';
foreach($arr as $key=>$val) {
$out .= '<li>';
$out .= is_array($val) ? arrToUl($val) : $val;
$out .= '</li>';
}
return $out . '</ul>';
}
$arr = array('firstval','secondval',array('firstval2','secondval2',array('firstval3','secondval3',array('firstval4','secondval4',array('firstval5','secondval5')))));
echo arrToUl($arr);
Output in a jsfiddle.