I was wondering if it's possible to have an if statement within an echo.
I have if statement which works fine when echoing results through the a while loop... This is the statement:
<div><?php if ($row['image'] == '') {}
else {echo "<img src='data:image/jpeg;base64,".base64_encode($row['image'])."'>";} ?>
<?php if ($row['video'] == '') {}
else {echo "<iframe src={$row['video']}></iframe>";} ?></div>`
So basically it's either a video or an image which works fine but then I implemented an infinite scroll to my blog which echoes the data from the database through and if statement like so:
if ($results) {
while($obj = $results->fetch_object())
{
echo '
<div><h3>'.$obj->headline.'</h3> </div>
<div><img src='data:image/jpeg;base64,".base64_encode('.$obj->image.')."'></div>'
So I wondering if anyone knows if it's possible to transfer that if statement within this echo so that it display an image firstly and then knows whether one is present or when a video is present within the database.
Thanks in advance for any help.
PS: I'm very new to coding/php!
Of course. Just split up the echo into multiple statements:
while($row = $results->fetch_object()) {
echo '<div>';
if ($row['image'] == '') {
} else {
echo "<img src='data:image/jpeg;base64,".base64_encode($row['image'])."'>";
}
if ($row['video'] == '') {
} else {
echo "<iframe src={$row['video']}></iframe>";
}
echo '</div>';
}
Try this one.
//first initialize a variable as a string
$result="";
while($obj = $results->fetch_object()) {
$result.="<div>";
if (!empty($obj['image'])){
$result.="<img src='data:image/jpeg;base64,".base64_encode($obj['image'])."'>";
}
elseif (!empty($obj['video'])){
$result.="<iframe src={$obj['video']}></iframe>";
}else{
//show some notification or leave it
//echo 'not Found';
}
$result.="</div>";
}
//finally you need to print the result variable.
echo $result;
this is by Far the weirdest thing i have ever seen and i am completely confused. please someone help me with this.
$variable=array();
$count=0;
// now im am going to loop through a resource that i made
while(!feof($job))
{
$data=fgets($job);
// i am search for different things below. search for name, date, employer
// i am using regex to search btw
// presume object in class works fine, and they do.
if(search for eg name in $data, storing in $variable[$count].first($match))
// the problem is at this point i will have access to
// $variable[$count].getFirst(returns value set by first) which was set above;
if(search for eg Employer in $data, storing in variable[$count].next($match))
// i will have access here as well
// $variable[$count].getFirst(returns value set by first) which was set above
if(search for 3rd search in $data, storing in variable[$count].name($match))
// down here after the second if i am not able to see any of my variables set more than 2 if statements ago????
// $variable[$count].getFirst(does not returns the value set by first()) which was set above
if(search for 4th search in $data, storing in variable[$count].foo($match))
// check if everything is set then count++;
}
Now each one of these methods are completely dependent from the next but after 2 if statements. I am just not able to access $variable[count]->getfirst()
the answer is null;
edited
this is the actual code
require "functions/decodeEncodedUrl.php";
require "objects/jobObject.php";
$url=decodeEncodedUrl();
$profile=array();
$companies=0;
$url_search='http://www.jobbank.gc.ca/';
$startReading=0;
$job=fopen($url['url'], 'r')or die("JobBanks is failing to respond.<br>Please Try again Later");
while(!feof($job))
{
set_time_limit(500);
$profile[$companies]= new jobProfile();
$trash=fgets($job);
if(!$startReading)
{
if(preg_match('~RepeaterSearchResults_hypJobItem_[0-9]+~',$trash,$matches))
{
$startReading=true;
}
}
if($startReading)
{
$data=$trash;
if(preg_match("~href=\".*\"~",$data,$matches))
{
$temp=preg_replace("~href=~",'',$matches[0]);
$temp=preg_replace("~\"~",'',$temp);
$profile[$companies]->setLink($url_search.$temp);
var_dump($profile[$companies]);
echo "<br>";
echo "<br>";
}
if(preg_match("~>[A-Za-z-, ]+\(~",$data,$matches))
{
$temp=preg_replace("~>|\(~",'',$matches[0]);
$profile[$companies]->setPosition(ucfirst($temp));
var_dump($profile[$companies]);
echo "<br>";
echo "<br>";
}
if(preg_match("~# *[0-9]+~",$data,$matches))
{
$profile[$companies]->setOrderNum(preg_replace("~#| ~",'',$matches[0]));
var_dump($profile[$companies]);
echo "<br>";
echo "<br>";
}
if(preg_match("~Employer:</strong>.*~",$data,$matches))
{
$temp=preg_replace("~Employer:</strong> ~",'',$matches[0]);
$temp=preg_replace("~<br.*~",'',$temp);
$temp=ucfirst($temp);
$profile[$companies]->setEmployer($temp);
var_dump($profile[$companies]);
echo "<br>";
echo "<br>";
}
if(preg_match("~[$][0-9]+.*~",$data,$matches))
{
$temp=preg_replace("~/.*~",'',$matches[0]);
$profile[$companies]->setSalary(preg_replace("~[$]~","$ ",$temp));
var_dump($profile[$companies]);
echo "<br>";
echo "<br>";
}
if(preg_match("~[$][0-9]+.*~",$data,$matches))
{
$temp=preg_replace('~[$A-Za-z0-9. ]*[/] ?~','',$matches[0]);
$profile[$companies]->setRate(preg_replace('~<.*~','',$temp));
var_dump($profile[$companies]);
echo "<br>";
echo "<br>";
}
if(preg_match("~Location:.*~",$data,$matches))
{
$temp=preg_replace('~.*;~','',$matches[0]);
$temp=preg_replace('~^ |,~','',$temp);
$profile[$companies]->setCity(ucfirst($temp));
//echo ucfirst($temp)."<br>";
}
if(preg_match("~Location[:<>/\,A-Za-z ]*~",$data,$matches))
{
$profile[$companies]->setProvince($matches[0]);
//echo " ".$matches[0]."<br>\n";
//echo $profile[$companies]->getLocation()."\n<br>";
}
if(preg_match("~[0-9]{4}/[0-9]{2}/[0-9]{1,2}~",$data,$matches))
{
echo $profile[$companies]->displayHTML();
$profile[$companies]->setDate($matches[0]);
if($profile[$companies]->allDataSet())
{
//echo "data was set"."<br>";
$startReading=false;
$companies++;
}
else
{
$startReading=false;
$companies++;
echo "Data was Not set";
}
}
}
}
fclose($job);
everything works except the $profile[number] doesn't store anything in it at all after the 3 rd if statement when the variable is stored.
If
{
//Profile[number] info stored
}
if
{
//Profile[number] info available
}
if
{
//profile[number] info available
}
if
{
//profile[number] info is gone
}
variable[$count].next($match)
the .next() moves the internal pointer to the next element in the array.
i'm using JSON to get data and then PHP to display. so...
i'm showing everything available to a person and i want to echo a message when the loop is blank/empty that "there's nothing available" because right now it just shows a blank screen when there is no data... any ideas??
<?
foreach($json['available'] as $r) {
echo '<li>' .$r['item'].'</li>';
}}
?>
Just use an if statement and check if $json['available'] is empty with empty().
if( empty( $json['available'])) {
echo '<li>No items are available</li>';
} else {
foreach($json['available'] as $r) {
echo '<li>' .$r['item'].'</li>';
}
}
Use empty to check if $json contains something or not.
Assuming that $json['available'] is going to be an empty array at worst:
if (!$json['available']) {
echo "nothing to show!";
}
else {
// your current code
}
If it's possible that $json['available'] might not even exist, a more "heavy-handed" alternative is
if (empty($json['available'])) {
echo "nothing to show!";
}
Couple of issues here I'm not sure on what the issue is but with how my coding is set up it looks odd in the firebug with how the uls, lis, and h2s are rendered. Any ideas why and also I need some suggestions on how to fix the errors I am getting which is caused by some categories not having child pages. In which case if they don't have child pages I don't want my code to do anything just pass over it.
kansasoutlawwrestling.com/site-map
<?php
echo "<pre>";
print_r($categoriesArray);
echo "</pre>";
if((isset($categoriesArray)) AND ((!empty($categoriesArray))||($categoriesArray !== NULL)))
{
if(count($categoriesArray) <= 0)
{
echo "There are no content pages on this site!";
}
else
{
foreach ($categoriesArray as $row)
{
echo "<h2>".stripslashes($row['name'])."</h2>";
echo "<ul>";
foreach ($row['children'] as $row2)
{
echo "<li>".stripslashes($row2['link_name'])."</li>";
if (count($row2) > 0)
{
echo "<ul>";
foreach ($row2['child_pages'] as $row3)
{
echo "<li>".stripslashes($row3['link_name'])."</li>";
}
echo "<ul>";
}
}
echo "</ul>";
}
}
}
else
{
echo "There are no content pages on this site!";
}
?>
EDIT: Any other ideas for me to try?
You could do;
if(count($row2['child_pages']) < 1) {
continue;
}
Hope it helps
I am trying to echo the message 'No records found' when I get nothing back from the database.
I have done a row count which shows me how many rows I have but I can't seem to echo the 'No records found' message. Is it in the wrong place? Will it not run for some reason?
<?php if(isset($search_results)){
foreach($search_results as $result) {
$rowcount = $result['rowcount'];
if(!$rowcount < 1) {
echo $rowcount;
echo '<div class="search_result"> <b>'.$result['title'].'</b><br />';
echo '<span class="search_result_url">'.$result['link'].'</span><br />';
echo $result['text'].'<br /></div>';
} else {
echo 'No records found.';
}
}
} else {
echo 'Use the search to find what you are looking for. Enter the term or keyord into the search box and press enter..';
}
?>
Take a look at mysql_num_rows(), and use an if() to see whether your mysql_query() returned any results:
$result = mysql_query("SELECT * FROM table");
if(!mysql_num_rows($result))
{
echo 'No results';
}
else
{
// Results - do stuff.
}