php function to get page title - php

I want to get my website page title through a function
First I get the Page Name from a function...
function pagetitle() {
global $th, $ta, $tp, $ts, $tc; // <---- Getting the variable value from outside function
global $bl, $qt;
$tit = ucfirst(pathinfo($_SERVER['PHP_SELF'], PATHINFO_FILENAME));
if($tit == "Index") {
echo $th;
}
elseif($tit == "About-us"){
echo $ta;
}
elseif($tit == "Projects"){
echo $tp;
}
elseif($tit == "Services"){
echo $ts;
}
elseif($tit == "Contact-us"){
echo $tc;
}
elseif($tit == "Blog"){
echo $bl;
}
elseif($tit == "Quotation"){
echo $qt;
}
}
Then I tried to get the page title in the format of PageName | PageTitle or PageTitle | PageName...
function getOrg_title(){
$tit = "";
$block = " | ";
global $sl;
$org = $sl['app_org'];
if($sl['title_before'] === 'yes'){
$tit = $org.$block.\pagetitle(); //<----- This should be like "Raj | This is my website"
} else {
$tit = \pagetitle().$block.$org; //<----- This should be like "This is my website | Raj"
}
echo $tit;
}
But not happening...
$tit = $org.$block.\pagetitle(); //<----- Output is "This is my websiteRaj |"
And
$tit = \pagetitle().$block.$org; //<----- Output is "This is my website | Raj"
What should I do ?

You expect pagetitle() to return the page's title, but instead in your code you use echo.
echo will print out the title to the client rather than return it to the caller.
So change you echo $...; to return $...; and do echo pagetitle(); whereever you use it directly.
If this can not be done, you could extend your function to
pagetitle($echo = true)
{
// ...
if(/* ... */) {
$ret = $th;
} elseif(/* ... */) {
$ret = ...;
} elseif(/* ... */) {
$ret = ...;
}
// And so on ...
if($echo)
echo $ret;
return $ret;
}
Now in your wrapper function call pagetitle(false) to prevent the echo and still get the title from it.
About the backslash: \pagetitle()
The backslash is the namespace separator. Since you are not using namespacing here, all functions will be on the root namespace.
In this case - if you are using PHP 5.3 or above - you can use it or leave it out.

Related

string replace without using any in-built function

With a program to replace substring in a string without using str_replace
should be generic function should work for below example:
Word : Hello world
Replace word : llo
Replace by : zz
Output should be: Hezz world
Word : Hello world
Replace word : o
Replace by : xx
Output should be: Hellxx wxxrld
This is what i wrote to solve it
function stringreplace($str, $stringtoreplace, $stringreplaceby){
$i=0;$add='';
while($str[$i] != ''){
$add .= $str[$i];
$j=0;$m=$i;$l=$i;$check=0;
if($str[$i] == $stringtoreplace[$j]){
while($stringtoreplace[$j] != ''){
if($str[$m] == $stringtoreplace[$j]){
$check++;
}
$j++;$m++;
}
if($check == strlen($stringtoreplace)){
$n=0;$sub='';
for($n=0;$n<=strlen($stringtoreplace);$n++){
$str[$l] = '';
$sub .= $str[$l];
$l++;
}
$add .= $stringreplaceby;
$i += $check;
}
}
$i++;
}//echo $add;exit;
return $add;
}
I am getting output as helzzworld .
Please take a look what I did wrong or if you have better solution for this please suggest.
You can do this by explode the main string into array then implode your stringreplaceby to your array parts creating new string
<?php
function stringreplce($str,$strreplace,$strreplaceby){
$str_array=explode($strreplace,$str);
$newstr=implode($strreplaceby,$str_array);
return $newstr;
}
echo stringreplce("Hello World","llo","zz")."<br>";
echo stringreplce("Hello World","Hel","zz")."<br>";
echo stringreplce("Hello World"," Wo","zz")."<br>";
echo stringreplce("Hello World","rl","zz")."<br>";
echo stringreplce("Hello World","ld","zz")."<br>";
?>
Try this simplest one, without using str_replace, Here we are using explode and implode and substr_count.
1. substr_count for counting and checking the existence of substring.
2. explode for exploding string into array on the basis of matched substring.
3. implode joining the string with replacement.
Try this code snippet here
<?php
ini_set('display_errors', 1);
$string="Hello world";
echo strReplace($string,"llo","zz");
echo strReplace($string,"o","xx");
function strReplace($string,$toReplace,$replacement)
{
if(substr_count($string, $toReplace))
{
$array=explode($toReplace,$string);
return implode($replacement, $array);
}
}
Solution 2:
Try this code snippet here not best, but working
<?php
ini_set('display_errors', 1);
$string="Hello world";
echo strReplace($string,"llo","zz");
echo strReplace($string,"o","xx");
function strReplace($string,$toReplace,$replacement)
{
while($indexArray=checkSubStringIndexes($toReplace,$string))
{
$stringArray= getChars($string);
$replaced=false;
$newString="";
foreach($stringArray as $key => $value)
{
if(!$replaced && in_array($key,$indexArray))
{
$newString=$newString.$replacement;
$replaced=true;
}
elseif(!in_array($key,$indexArray))
{
$newString=$newString.$value;
}
}
$string=$newString;
}
return $string;
}
function getLength($string)
{
$counter=0;
while(true)
{
if(isset($string[$counter]))
{
$counter++;
}
else
{
break;
}
}
return $counter;
}
function getChars($string)
{
$result=array();
$counter=0;
while(true)
{
if(isset($string[$counter]))
{
$result[]=$string[$counter];
$counter++;
}
else
{
break;
}
}
return $result;
}
function checkSubStringIndexes($toReplace,$string)
{
$counter=0;
$indexArray=array();
$newCounter=0;
$length= getLength($string);
$toReplacelength= getLength($toReplace);
$mainCharacters= getChars($string);
$toReplaceCharacters= getChars($toReplace);
for($x=0;$x<$length;$x++)
{
if($mainCharacters[$x]==$toReplaceCharacters[0])
{
for($y=0;$y<$toReplacelength;$y++)
{
if(isset($mainCharacters[$x+$y]) && $mainCharacters[$x+$y]==$toReplaceCharacters[$y])
{
$indexArray[]=$x+$y;
$newCounter++;
}
}
if($newCounter==$toReplacelength)
{
return $indexArray;
}
}
}
}
function ganti_kata($kata,$kata_awal,$kata_ganti){
$i =0; $hasil;
$panjang = strlen($kata);
while ($i < $panjang) {
if ($kata[$i] == $kata_awal) {
$hasil[$i] = $kata_ganti;
echo $hasil[$i];
}
else if ($kata[$i] !== $kata_awal){
$hasil[$i] = $kata[$i];
echo $hasil[$i];
}
$i++;
}
}
echo ganti_kata('Riowaldy Indrawan','a','x');
This code using php

how to use elseif statement in dom php html find

How to add statement, when I search and it doesnt exist on the url, it will show nothing.html?
$url1 = "http://www.pengadaan.net/tend_src_cont2.php?src_nm=";
$url2 = $_GET['src_nm']."&src_prop=";
$url3 = $_GET['src_prop'];
$url = $url1.$url2.$url3;
$html = file_get_html($url);
if (method_exists($html,"find")) {
echo "<ul>";
foreach($html->find('div[class=pengadaan-item] h1[] a[]') as $element ) {
echo ("<li>".$element."</li>");
}
echo "</ul>";
echo $url;
}
else {
}
There are two ways to move to another page in PHP. you can do header("Location: http://www.yourwebsite.com/nothing.php"); or you can have PHP echo JavaScript to do a reidrect (if you already defined your headers):
if (method_exists($html,"find")) { // If 'find exist'
...
} else { // Otherwise it does not exist
header("Location: http://www.pengadaan.net/nothing.php"); // redirect here
}
Or if you already sent you headers you can get around it using JavaScript:
...
} else {
echo '<script>window.location.replace("http://www.pengadaan.net/nothing.php")</script>';
}

Checking for undefined variables in a function php

So I've been trying to devise a function that will echo a session variable only if it is set, so that it wont create the 'Notice' about an undefined variable. I am aware that one could use:
if(isset($_SESSION['i'])){ echo $_SESSION['i'];}
But it starts to get a bit messy when there are loads (As you may have guessed, it's for bringing data back into a form ... For whatever reason). Some of my values are also only required to be echoed back if it equals something, echo something else which makes it even more messy:
if(isset($_SESSION['i'])){if($_SESSION['i']=='value'){ echo 'Something';}}
So to try and be lazy, and tidy things up, I have tried making these functions:
function ifsetecho($variable) {
if(!empty($variable)) {
echo $variable;
}
}
function ifseteqecho($variable,$eq,$output) {
if(isset($variable)) {
if($variable==$eq) {
echo $output;
}
}
}
Which wont work, because for it to go through the function, the variable has to be declared ...
Has anyone found a way to make something similar to this work?
maybe you can achieve this with a foreach?
foreach ($_SESSION as $variable)
{function ifseteqecho($variable,$eq,$output) {
if($variable==$eq) {
echo $output;
}
else echo $variable;
}
}
now this will all check for the same $eq, but with an array of corresponding $eq to $variables:
$equiv = array
('1'=>'foo',
'blue'=>'bar',);
you can check them all:
foreach ($_SESSION as $variable)
{function ifseteqecho($variable,$equiv) {
if(isset($equiv[$variable])) {
echo $equiv[$variable];
}
else {
echo $variable;
}
}
}
Something like this?, you could extend it to fit your precise needs...
function echoIfSet($varName, array $fromArray=null){
if(isset($fromArray)){
if(isset($fromArray[$varName])&&!empty($fromArray[$varName])){
echo $fromArray[$varName];
}
}elseif(isset($$varName)&&!empty($$varName)){
echo $$varName;
}
}
You may use variable variables:
$cat = "beautiful";
$dog = "lovely";
function ifsetecho($variable) {
global $$variable;
if(!empty($$variable)){
echo $$variable;
}
}
ifsetecho("cat");
echo "<br/>";
ifsetecho("dog");
echo "<br/>";
ifsetecho("elephant");
UPDATE: With a rather complex code I’ve managed to meet your requirements:
session_start();
$cat = "beautiful";
$dog = "lovely";
$_SESSION['person']['fname'] = "Irene";
function ifsetecho($variable){
$pattern = "/([_a-zA-Z][_a-zA-Z0-9]+)".str_repeat("(?:\\['([_a-zA-Z0-9]+)'\\])?", 6)."/";
if(preg_match($pattern, $variable, $matches)){
global ${$matches[1]};
if(empty(${$matches[1]})){
return false;
}
$plush = ${$matches[1]};
for($i = 2; $i < sizeof($matches); $i++){
if(empty($plush[$matches[$i]])){
return false;
}
$plush = $plush[$matches[$i]];
}
echo $plush;
return true;
}
return false;
}
ifsetecho("cat");
echo "<br/>";
ifsetecho("dog");
echo "<br/>";
ifsetecho("elephant");
echo "<br/>";
ifsetecho("_SESSION['person']['fname']");
echo "<br/>";
ifsetecho("_SESSION['person']['uname']");
echo "<br/>";

Generating XML file through PHP results in a minor issue . Please help

In order to generate a XML i am using following Code currently.
.<?php
require ('../dbconfig/dbconfig.php');
$appId = $_GET['id'];
$sqlTabs = "Select _id,tab_title,position from tab_info where app_id=$appId order by position ";
$resultTabs=mysql_query($sqlTabs );
$countTabs=mysql_num_rows($resultTabs);
if($countTabs>0)
{
echo '<application applicationName="sample app">';
echo '<tabs>';
while ($rowTab = mysql_fetch_array($resultTabs) ) {
echo '<tab id="t'.$rowTab['_id'].'" tabtitle="'.$rowTab['tab_title'].'" position="'.$rowTab['position'].'" data="somedata">';
$sqlTabItems = "Select _id as tabitemId,item_type,item_title,item_data from items_info where tab_id=".$rowTab['_id']." and parent_id=0 order by _id ";
$resultTabItems=mysql_query($sqlTabItems);
$countTabItems=mysql_num_rows($resultTabItems);
if($countTabItems>0)
{
$level = 1;
echo '<listItems>';
while ($rowTabItem = mysql_fetch_array($resultTabItems) ) {
echo '<listItem id="'.$rowTabItem['tabitemId'].'" parentId="t'.$rowTab['_id'].'" itemtype="'.$rowTabItem['item_type'].'" itemtitle="'.$rowTabItem['item_title'].'" itemdata="'.$rowTabItem['item_data'].'" level="'.$level.'">';
giveitems($rowTabItem['tabitemId'],$rowTab['_id'],$level);
echo '</listItem>';
}
echo '</listItems>';
}
else
echo 'No Data';
echo '</tab>';
}
echo '</tabs></application>';
}
else
{
echo 'No Data';// no tabs found
}
function giveitems($pitemId,$tabId,$level)
{
$sqlItems = "Select _id,item_type,item_title,item_data from items_info where parent_id=".$pitemId." order by _id ";
$resultItems=mysql_query($sqlItems);
$countItems=mysql_num_rows($resultItems);
$numbers = 0;
if($countItems>0)
{
$level = $level +1;
echo '<listItems>';
while ($rowItem = mysql_fetch_array($resultItems) ) {
echo '<listItem id="'.$rowItem[0].'" parentId="'.$pitemId.'" itemtype="'.$rowItem[1].'" itemtitle="'.$rowItem[2].'" itemdata="'.$rowItem[3].'" level="'.$level.'">';
/*********** Recursive Logic ************/
if(giveitems($rowItem[0],$tabId,$level)==1)
{
echo '</listItem></listItems>';
return 1;
}
else
{
echo '</listItem></listItems>';
return -1;
}
}
}
else
{
echo 'No Data';// no tabs found
return -1;
}
}
?>
Now in this code i want to replace all echo statements with a String variable and then i want to write that String variable content into a file , the porblem is if i define the string variable at the top of the file even then also that string variable cannot accessible from the giveItems functions below.
Pls suggest some solution
To access a global variable from within a function you need to write global $varname; at the top of that function's definition. Example:
function giveitems($pitemId,$tabId,$level) {
global $xmlstring;
// ....
}
However, this is pretty bad practice nowadays and you'd be better off writing a class that will both produce the XML and write it to a file.

php regex failed, why?

The value is AbcDefg_123.
Here is the regex:
function checkAlphNum($alphanumeric) {
$return = false;
if((preg_match('/^[\w. \/:_-]+$/', $alphanumeric))) {
$return = true;
}
return $return;
}
Should allow a-zA-Z0-9.:_-/ and space in any order or format and does need all but at least one character.
EDIT: Sorry again, looks like var_dump() is my new best friend. I'm working with XML and it's passing the tag as well as the value.
#SilentGhost thnx for the tips.
It works for me too.
<?php
class RegexValidator
{
public function IsAlphaNumeric($alphanumeric)
{
return preg_match('/^[\w. \/:_-]+$/', $alphanumeric);
}
}
?>
and this is how I am testing it.
<?php
require_once('Classes/Utility.php');
$regexVal = new RegexValidator();
$list = array("abcd", "009aaa", "%%%%", "0000(", "aaaa7775aaa", "$$$$0099aaa", "kkdkdk", "aaaaa", "..0000", " ");
foreach($list as $value)
{
if($regexVal->IsAlphaNumeric($value))
{
echo $value . " ------>passed";
echo "<BR>";
}
else
{
echo $value . "------>failed";
echo "<br>";
}
}
?>
function checkAlphNum($alphanumeric) {
$return = false;
if((preg_match('/^[A-Za-z0-9\w. \/:_-]+$/', $alphanumeric))) {
$return = true;
}
return $return;
}
print checkAlphNum("AbcDefg_123");
Returns true.

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