I would like to replace each decimal number for later using in Javascript. so This is my code:
if (preg_match_all("#[0-9]+(\.[0-9]{1,8})#", $operationvalue_new2, $result)) {
foreach ($result[0] as $number_element) {
$operationvalue_new2 = preg_replace(
"#[0-9]+(\.[0-9]{1,8})#",
"Number(\\0)",
$operationvalue_new2
);
#echo $operationvalue_new2;
}
};
Here is an example what happens:
//var1812/100*(var1805*var1807*2.688)+(var1808-var1812)*var1806*var1807*1.2/100)
will be converted to
//var1812/100*(var1805*var1807*Number(Number(2.688)))+(var1808-var1812)*var1806*var1807*Number(Number(1.2))/100)
but should be
//var1818=var1812/100*(var1805*var1807*Number(2.688))+(var1808-var1812)*var1806*var1807*Number(1.2)/100)
Try this:
<?php
$subject = "var1812/100*(var1805*var1807*2.688)+(var1808-var1812)*var1806*var1807*1.2/100)";
$result = preg_replace('/([0-9]+\.[0-9]{1,8})/s', 'number($1)', $subject);
echo $result;
?>
Results in:
var1812/100*(var1805*var1807*number(2.688))+(var1808-var1812)*var1806*var1807*number(1.2)/100)
Related
this is my code
<?php
$string = 'this
this
good
good
hahah';
$rows = explode("\n",$string);
$unwanted = 'this|good';
$cleanArray= preg_grep("/$unwanted/i",$rows,PREG_GREP_INVERT);
$cleanString=implode("\n",$cleanArray);
print_r ( $cleanString );
?>
display
hahah
i want like this
this
good
hahah
i want to keep one...
please help me, thanks guys
This code resorts to checking each line to see if it matches your $unwanted string, but it also creates an array of strings it has already encountered so it checks if it has previously been encountered ( using in_array()). If it matches and has been encountered before it uses unset() in the original $rows to remove the line...
$string = 'this
this
good
good
hahah';
$rows = explode("\n",$string);
$unwanted = 'this|good';
$matched = [];
foreach ( $rows as $line => $row ) {
if ( preg_match("/$unwanted/i",$row, $matches)) {
if ( in_array(trim($matches[0]), $matched) === true ) {
unset($rows[$line]);
}
$matched[] = $matches[0];
}
}
$cleanString=implode("\n",$rows);
print_r ( $cleanString );
<?php
$string = 'this
this
good
yyyy
good
xxxx
hahah';
print_r(
implode("\n",
array_diff(array_unique(
array_map(function($v) { return trim($v);}, explode("\n",$string))
)
,array('xxxx', 'yyyy')))
);
?>
output:
this
good
hahah
Refer: https://ideone.com/Eo0MIM
You can use this simple code to get result:
$result = array_unique(explode("\n",str_replace(" ", "", $string)));
print_r ($result);
If you want more control over your data, use this code
$rows = explode("\n", $string);
$words = [];
foreach($rows as $row) {
$row = trim($row);
$words[$row] = true;
}
foreach($words as $word => $tmp) {
echo $word . "\n";
}
Here is one way you could do this:
$string = 'this
this
good
good
hahah';
preg_match_all('/([a-z])+/', $string, $matches);
$string = implode("\n",array_unique($matches[0]));
echo $string;
You can use php inbuilt array_unique function
<?php
$string = 'this
this
good
good
haha';
$rows = explode("\n",$string);
$cleanArray = array_unique($rows);
$cleanString=implode("\n",$cleanArray);
print_r ( $cleanString );
//result is this good haha
Let's say that I have the following string:
$string = 'xxyyzz';
And then I have a substitution array like this:
$subs = ['xy'];
Meaning that every x should be replaced by y in my string and every y should be replaced by x. Let's say that my substitution array can only contain pairs of characters to be replaced in my $string.
How would I go about doing this?
I tried using str_replace the following way but that doesn't work:
foreach ($subs as $sub) {
$sub_arr = str_split($sub);
$reversed_sub_arr = array_reverse($sub_arr);
$output = str_replace($sub_arr, $reversed_sub_arr, str_split($string));
}
$output = implode('', $output);
But the output gives me xxxxzz
The output should be yyxxzz
Thanks for any help
This working for your case
$string = 'xxyyzz';
$subs = ['xy'];
foreach ($subs as $sub) {
$sub_arr = str_split($sub);
$output = strtr($string, array($sub_arr[0]=>$sub_arr[1], $sub_arr[1]=>$sub_arr[0]));
}
echo $output; //yyxxzz
Extending #Orgil answer if two items in $subs array like $subs = ['xy', 'dz']
$string = $output = 'xxyyzz';
$subs = ['xy', 'dz'];
foreach ($subs as $sub) {
$sub_arr = str_split($sub);
$output = strtr($output, array($sub_arr[0]=>$sub_arr[1], $sub_arr[1]=>$sub_arr[0]));
}
echo $output;
Demo
I have the below string in PHP.
:guest!lbjpewueqi#AF8A326D.E0B4A40D.F85DC93A.IP
I need to create these variables from the string:
$nick = guest
$user = lbjpewueqi
$host = AF8A326D.E0B4A40D.F85DC93A.IP
What is the best function to use to do this?
Ideally I would like to create some sort of function so I can pass to it the string and what part I want returned.
For example:
$string = "guest!lbjpewueqi#AF8A326D.E0B4A40D.F85DC93A.IP";
echo stringToPart($string, nick);
guest
echo stringToPart($string, nick);
lbjpewueqi
echo stringToPart($string, host);
AF8A326D.E0B4A40D.F85DC93A.IP
Another version:
function stringToPart($string, $part) {
if (preg_match('/^:(.*)!(.*)#(.*)/', $string, $matches)) {
$nick = $matches[1];
$user = $matches[2];
$host = $matches[3];
return isset($$part) ? $$part : null;
}
}
More strict than preg_split solutions - it checks separators order.
Maybe this code may helpful for you
$p = '/[:!#]/';
$s = ":guest!lbjpewueqi#AF8A326D.E0B4A40D.F85DC93A.IP";
print_r( preg_split( $p, $s ), 1 );
You can declare a function like this:
$s = ":guest!lbjpewueqi#AF8A326D.E0B4A40D.F85DC93A.IP";
function stringToPart($str, $part) {
$pat['nick'] = '/:(.*)!/';
$pat['user'] = '/.*!(.*)#/';
$pat['host'] = '/#(.*)/';
preg_match($pat[$part], $str, $m);
if (count($m) > 1) return $m[1];
return null;
}
echo stringToPart($s,'nick')."\n";
echo stringToPart($s,'user')."\n";
echo stringToPart($s,'host')."\n";
The below should do what you're looking for.
$pattern = "/[:!#]/";
$subject = ":guest!lbjpewueqi#AF8A326D.E0B4A40D.F85DC93A.IP";
print_r(preg_split($pattern, $subject));
The pattern is specifying what characters to split on so you could in theory have any amount of characters here if there were other instance you needed to account for different strings being passed in.
To return the values instead of just printing then to the screen use this:
$pattern = "/[:!#]/";
$subject = ":guest!lbjpewueqi#AF8A326D.E0B4A40D.F85DC93A.IP";
$result = preg_split($pattern, $subject));
$nick = $result[1];
$user = $result[2];
$host = $result[3];
stringToPart(':guest!lbjpewueqi#AF8A326D.E0B4A40D.F85DC93A.IP','nick');
function stringToPart($string, $type){
$result['nick']= substr($string,strpos($string,':')+1,(strpos($string,'!')-strpos($string,':')-1));
$result['user']= substr($string,strpos($string,'!')+1,(strpos($string,'#')-strpos($string,'!')-1));
$result['host']= substr($string,strpos($string,'#')+1);
return $result[$type];
}
<?php
function stringToPart($string, $key)
{
$matches = null;
$returnValue = preg_match('/:(?P<nick>[^!]*)!(?P<user>.*?)#(?P<host>.*)/', $string, $matches);
if (isset($matches[$key]))
{
return $matches[$key];
} else
{
return NULL;
}
}
$string = ':guest!lbjpewueqi#AF8A326D.E0B4A40D.F85DC93A.IP';
echo stringToPart($string, "nick");
echo "<br />";
echo stringToPart($string, "user");
echo "<br />";
echo stringToPart($string, "host");
echo "<br />";
?>
<?
echo "Begin Function=";
echo "<br>";
$text = "2lyve: this is: 8475978474957845 948594: jfhdhfkd: just the 2lyve: beginning:";
function getTrends($text)
{
$subject = $text;
$pattern ='/(\w+:)/Ui';
preg_match_all($pattern, $subject, $matches);
foreach($matches[1] as $value)
{
print $value."<br>";
}
}
getTrends($text);
?>
The result will be:
Begin Function=
2lyve:
is:
948594:
jfhdhfkd:
2lyve:
beginning:
How do I count how many times each result is returned and rank it? Also, how to I import these results into a sql database?
PHP actually has a specific function for this purpose.
array_count_values
Your code could be changed to
<?php
echo "Begin Function=";
echo "<br>";
$text = "2lyve: this is: 8475978474957845 948594: jfhdhfkd: just the 2lyve: beginning:";
function getTrends($text)
{
$subject = $text;
$pattern ='/(\w+:)/Ui';
preg_match_all($pattern, $subject, $matches);
$findings = array_count_values($matches[1]);
foreach($findings as $value=>$occ)
{
print $value."<br>";
}
}
getTrends($text);
?>
Declare an array $map = array(); in the start of your function, and then in the place of
print $value."<br>";
put
if(isset($map[$value])) {
$map[$value]++;
} else {
$map[$value] = 1;
}
I need some help with twitter hashtag, I need to extract a certain hashtag as string variable in PHP.
Until now I have this
$hash = preg_replace ("/#(\\w+)/", "#$1", $tweet_text);
but this just transforms hashtag_string into link
Use preg_match() to identify the hash and capture it to a variable, like so:
$string = 'Tweet #hashtag';
preg_match("/#(\\w+)/", $string, $matches);
$hash = $matches[1];
var_dump( $hash); // Outputs 'hashtag'
Demo
I think this function will help you:
echo get_hashtags($string);
function get_hashtags($string, $str = 1) {
preg_match_all('/#(\w+)/',$string,$matches);
$i = 0;
if ($str) {
foreach ($matches[1] as $match) {
$count = count($matches[1]);
$keywords .= "$match";
$i++;
if ($count > $i) $keywords .= ", ";
}
} else {
foreach ($matches[1] as $match) {
$keyword[] = $match;
}
$keywords = $keyword;
}
return $keywords;
}
As i understand you are saying that
in text/pargraph/post you want to show tag with hash sign(#) like this:- #tag
and in url you want to remove # sign because the string after # is not sended to server in request so i have edited your code and try out this:-
$string="www.funnenjoy.com is best #SocialNetworking #website";
$text=preg_replace('/#(\\w+)/','<a href=/hash/$1>$0</a>',$string);
echo $text; // output will be www.funnenjoy.com is best <a href=search/SocialNetworking>#SocialNetworking</a> <a href=/search/website>#website</a>
Extract multiple hashtag to array
$body = 'My #name is #Eminem, I am rap #god, #Yoyoya check it #out';
$hashtag_set = [];
$array = explode('#', $body);
foreach ($array as $key => $row) {
$hashtag = [];
if (!empty($row)) {
$hashtag = explode(' ', $row);
$hashtag_set[] = '#' . $hashtag[0];
}
}
print_r($hashtag_set);
You can use preg_match_all() PHP function
preg_match_all('/(?<!\w)#\w+/', $description, $allMatches);
will give you only hastag array
preg_match_all('/#(\w+)/', $description, $allMatches);
will give you hastag and without hastag array
print_r($allMatches)
You can extract a value in a string with preg_match function
preg_match("/#(\w+)/", $tweet_text, $matches);
$hash = $matches[1];
preg_match will store matching results in an array. You should take a look at the doc to see how to play with it.
Here's a non Regex way to do it:
<?php
$tweet = "Foo bar #hashTag hello world";
$hashPos = strpos($tweet,'#');
$hashTag = '';
while ($tweet[$hashPos] !== ' ') {
$hashTag .= $tweet[$hashPos++];
}
echo $hashTag;
Demo
Note: This will only pickup the first hashtag in the tweet.