*strong text*what i want to do is from my breakline content to one line paragraph
example my var_dump result:
string(212) "(73857,"2012-02-02 03:18:44","TXT",60143836234);"
string(122) "(73858,"2012-02-02 03:20:08","WAP",60143836234);"
string(211) "(73859,"2012-02-02 08:21:47","TXT",60163348563,);"
What i want to become:
string(555) "(73857,"2012-02-02 03:18:44","TXT",60143836234);(73858,"2012-02-02 03:20:08","WAP",60143836234);(73859,"2012-02-02 08:21:47","TXT",60163348563,);"
update (here is my code, $i is the line break records, if I able to make the breakline to one line, i will put in a new file )
foreach($get_line_feed_content as $i) {
$add_special_char = "(".$i.");";
var_dump($add_special_char);
if(!empty($i)){
$stringData = $final_content;
fwrite($save, $stringData);
fclose($save);
}
}
any idea?
Thank and highly appreciated your answer
Did you just want to glue the strings together? I don't see any line breaks from your dumps.
If that's the case, just do:
$finalString = $string1 . $string2 . $string3;
var_dump($finalString); //Strings should be glued as one.
If, however, each line is represented as an element in an array:
$stringsArray = array('string1', 'string2', 'string3');
$finalString = implode("", $stringsArray);
var_dump($finalString);
With your most recent update, this is what I would do:
$newString = '';
foreach($get_line_feed_content as $i) {
$newString .= "(".$i.");"; //concatenate
var_dump($newString); //You will get a lot of dumps and with each dump, a new string should be appended to it.
if(!empty($i)){
fwrite($save, $newString);
fclose($save);
}
}
if you want to glue strings you can do like this:
$data = $string1.$string2.$string3;
If you have array of strings do like this:
$strings = array('text1','text2','text3');
$data = implode('', $strings);
Related
I found this code in another post which I found quite helpful but for me it's only half the equation. In line with the following code, I need to take the string from a database, explode it into the 2d array, edit values in the array and implode it back ready for storage in the same format. So specifically backwards in the same order as the existing script.
The code from the other post >>
$data = "i love funny movies \n i love stackoverflow dot com \n i like rock song";
$data = explode(" \n ", $data);
$out = array();
$step = 0;
$last = count($data);
$last--;
foreach($data as $key=>$item){
foreach(explode(' ',$item) as $value){
$out[$key][$step++] = $value;
}
if ($key!=$last){
$out[$key][$step++] = ' '; // not inserting last "space"
}
}
print '<pre>';
print_r($out);
print '</pre>';
The quoted code inserts separate array elements which just have a space as value. One can wonder what benefit those bring.
Here are two functions you could use:
function explode2D($row_delim, $col_delim, $str) {
return array_map(function ($line) use ($col_delim) {
return explode($col_delim, $line);
}, explode($row_delim, $str));
}
function implode2D($row_delim, $col_delim, $arr) {
return implode($row_delim,
array_map(function ($row) use ($col_delim) {
return implode($col_delim, $row);
}, $arr));
}
They are each other's opposite, and work much like the standard explode and implode functions, except that you need to specify two delimiters: one to delimit the rows, and another for the columns.
Here is how you would use it:
$data = "i love funny movies \n i love stackoverflow dot com \n i like rock song";
$arr = explode2D(" \n ", " ", $data);
// manipulate data
// ...
$arr[0][2] = "scary";
$arr[2][2] = "balad";
// convert back
$str = implode2D(" \n ", " ", $arr);
See it run on repl.it.
If I have a piece of code that works like this:
$i = 0;
$names = explode(",", $userInput);
foreach($names as $name) {
$i++;
}
It works perfectly, provided the user has placed a comma after each name entered into the html textarea this comes from. But I want to make it more user friendly and change it so that each name can be entered on a new line and it'll count how many lines the user has entered to determine the number of names entered into the field. So I tried:
$i = 0;
$names = explode("\n", $userInput);
foreach($names as $name) {
$i++;
}
But this just gives me "1" as a result, regardless the number of new lines in the textarea. How do I make my explode count new lines instead of basing the count on something specifically entered into the text string?
EDIT Thanks to the people who answered, I don't believe there were any wrong answers as such, just one that suited my original code better than the others, and functioned. I ended up adopting this and modifying it so that numerous blank line returns did not result in artificially inflating the $userInput count. Here is what I am now using:
if(($userInput) != NULL) {
$i = 0;
$names = explode(PHP_EOL, trim($userInput));
foreach($names as $name) {
$i++;
}
}
It trims the empty space from the $userInput so that the remainder of the function is performed on only valid line content. :)
Don't make it complicated, you don't have to explode it into an array, just use this:
(Just count the new line character (PHP_EOL) in your string with substr_count())
echo substr_count($userInput, PHP_EOL);
Try using the PHP end of line constant PHP_EOL
$names = explode(PHP_EOL, $userInput);
A blank string as input:
var_dump(explode("\n", ''));
gives this as a result from a call to explode():
array(1) { [0]=> string(0) "" }
so you could use a ternary statement:
$names = $userInput == '' ? array() : explode("\n", $userInput);
Maybe you can change the explode function with preg_split to explode the user string with a regex
$users = preg_split('/[\n\r]+/', $original);
That's the idea, but I'm not on the computer so I can't test my code.
That regex would split the string if it founds one or more line breaks.
In a comma delimited string, in php, as such: "1,2,3,4,4,4,5" is it possible to say:
if(!/*4 is in string bla*/){
// add it via the .=
}else{
// do something
}
In arrays you can do in_array(); but this isn't a set of arrays and I don't want to have to convert it to an array ....
Try exploding it into an array before searching:
$str = "1,2,3,4,4,4,5";
$exploded = explode(",", $str);
if(in_array($number, $exploded)){
echo 'In array!';
}
You can also replace numbers and modify the array before "sticking it back together" with implode:
$strAgain = implode(",", $exploded);
You could do this with regex:
$re = '/(^|,)' + preg_quote($your_number) + '(,|$)/';
if(preg_match($re, $your_string)) {
// ...
}
But that's not exactly the clearest of code; someone else (or even yourself, months later) who had to maintain the code would probably not appreciate having something that's hard to follow. Having it actually be an array would be clearer and more maintainable:
$values = explode(',', $your_string);
if(in_array((str)$number, $values)) {
// ...
}
If you need to turn the array into a string again, you can always use implode():
$new_string = implode(',', $values);
I have a php value coming back from my database as a string, like
"this, that, another, another"
And I'm trying to wrap a separate link around each of those strings, but I can't seem to get it to work. I've tried a for loop, but since it's just a string of information and not an array of information that doesn't really work. Is there a way to wrap a unique link around each value in my string?
The easiest way that I see to do this would be using PHP's explode() function. You'll find that it will become very useful as you start to use PHP more and more, so do check out its documentation page. It allows you to split a string up into an array given a certain separator. In your case, this would be ,. So to split the string:
$string = 'this, that, another, another 2';
$parts = explode(', ', $string);
Then use a foreach (again, check the documentation) to iterate through each of the parts and make them into a link:
foreach($parts as $part) {
echo '' . $part . "\n";
}
However, you can do this with a for loop. Strings can be accessed like arrays, so you can implement a parser pattern to parse the string, extract the parts, and create the links.
// Initialize some vars that we'll need
$str = "this, that, another, another";
$output = ""; // final output
$buffer = ""; // buffer to hold current part
// Iterate over each character
for($i = 0; $i < strlen($str); $i++) {
// If the character is our separator
if($str[$i] === ',') {
// We've reached the end of this part, so add it to our output
$output .= '' . trim($buffer) . "\n";
// clear it so we can start storing the next part
$buffer = "";
// and skip to the next character
continue;
}
// Otherwise, add the character to the buffer for the current part
$buffer .= $str[$i];
}
echo $output;
(Codepad Demo)
A better way is to do it like this
$string = "this, that, another, another";
$ex_string = explode(",",$string);
foreach($ex_string AS $item)
{
echo "<a href='#'>".$item."</a><br />";
}
First explode the string to get the individual words in an array. Then add the hyperlinks to the words and finally implode them.
$string = "this, that, another, another";
$words = explode(",", $string);
$words[0] = $words[0]
$words[1] = $words[1]
..
$string = implode(",", $words);
You can also use the for loop to assign hyperlinks that follow a pattern like this:
for ($i=0; $i<count($words); $i++) {
//assign URL for each word as its name or index
}
I want to display just two lines of the paragraph.
How do I do this ?
<p><?php if($display){ echo $crow->content;} ?></p>
Depending on the textual content you are referring to, you might be able to get away with this :
// `nl2br` is a function that converts new lines into the '<br/>' element.
$newContent = nl2br($crow->content);
// `explode` will then split the content at each appearance of '<br/>'.
$splitContent = explode("<br/>",$newContent);
// Here we simply extract the first and second items in our array.
$firstLine = $splitContent[0];
$secondLine = $splitContent[1];
NOTE - This will destroy all the line breaks you have in your text! You'll have to insert them again if you still want to preserve the text in its original formatting.
If you mean sentences you are able to do this by exploding the paragraph and selecting the first two parts of the array:
$array = explode('.', $paragraph);
$2lines = $array[0].$array[1];
Otherwise you will have to count the number of characters across two lines and use a substr() function. For example if the length of two lines is 100 characters you would do:
$2lines = substr($paragraph, 0, 200);
However due to the fact that not all font characters are the same width it may be difficult to do this accurately. I would suggest taking the widest character, such as a 'W' and echo as many of these in one line. Then count the maximum number of the largest character that can be displayed across two lines. From this you will have the optimum number. Although this will not give you a compact two lines, it will ensure that it can not go over two lines.
This is could, however, cause a word to be cut in two. To solve this we are able to use the explode function to find the last word in the extracted characters.
$array = explode(' ', $2lines);
We can then find the last word and remove the correct number of characters from the final output.
$numwords = count($array);
$lastword = $array[$numwords];
$numchars = strlen($lastword);
$2lines = substr($2lines, 0, (0-$numchars));
function getLines($text, $lines)
{
$text = explode("\n", $text, $lines + 1); //The last entrie will be all lines you dont want.
array_pop($text); //Remove the lines you didn't want.
return implode("<br>", $text); //Implode with "<br>" to a string. (This is for a HTML page, right?)
}
echo getLines($crow->content, 2); //The first two lines of $crow->content
Try this:
$lines = preg_split("/[\r\n]+/", $crow->content, 3);
echo $lines[0] . '<br />' . $lines[1];
and for variable number of lines, use:
$num_of_lines = 2;
$lines = preg_split("/[\r\n]+/", $crow->content, $num_of_lines+1);
array_pop($lines);
echo implode('<br />', $lines);
Cheers!
This is a more general answer - you can get any amount of lines using this:
function getLines($paragraph, $lines){
$lineArr = explode("\n",$paragraph);
$newParagraph = null;
if(count($lineArr) > 0){
for($i = 0; $i < $lines; $i++){
if(isset($lines[$i]))
$newParagraph .= $lines[$i];
else
break;
}
}
return $newParagraph;
}
you could use echo getLines($crow->content,2); to do what you want.