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How do I uppercase the first three words of a string?
I've tried using the below, but it doesn't work.
<p><?php echo strtoupper(substr($copy, 0, 3)) . substr($copy, 3); ?></p>
Thanks
This iterates over the first three words found in the string and applies uppercase:
$copy = 'hello world bla hohoho';
echo preg_replace_callback('/\w+/', function($m) {
return strtoupper($m[0]);
}, $copy, 3);
$words = preg_split('/\s/', $copy);
if(is_array($words)) {
$counter = 0;
foreach($words as $word) {
if($counter < 3) {
echo ucfirst(strtolower($word)), " ";
} else {
echo $word, " ";
}
$counter++;
}
}
Example
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I need to obfuscate or cover an email address on PHP.
For this, i have the next code.
<td>
<p class="list-item-heading"><small><?= $row->email ?></small></p>
</td>
Where $row->email is
realname_x123#gmail.com
.
I need to show this as
r*al****_x*2*#gmail.com
I need to replace with * ALWAYS the same parts of the string, not randomly because it will be shown on a list, maximun of 5 or 6 characters visible.
Anytips? I've tried with strpos, and str_replace with no success.
EDIT:
IF this cannot be do. It will be usefull also, for example, to only leave 3 chars from the beggining.
rea***********#gmail.com
I've found a workaround that suits for me.
<?php
function hideEmail($email)
{
$mail_segments = explode("#", $email);
$mail_segments[0] = substr($mail_segments[0], 0, 1) . str_repeat("*", strlen($mail_segments[0]) - 2) . substr($mail_segments[0], -1);
$pos = strpos($mail_segments[1], '.');
$mail_segments[1] = substr($mail_segments[1], 0, 1) . str_repeat("*", strlen($mail_segments[1]) - $pos+1) . substr($mail_segments[1], $pos-1);
return implode("#", $mail_segments);
}
?>
function mailObfuscate($mail) {
//every second character replace with *
$mail = explode('#',$mail);
$array = str_split($mail[0]);
$control = 0;
$ret = '';
foreach ($array as $char) {
if ($control == 0) {$ret .= '*'; $control++;} else {$ret .= $char; $control=0;}
}
return $ret.'#'.$mail[1];
}
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i'm trying to find an exact word inside a string.
example:
$word = "Many Blocks";
if (strpos($word, "Block")){
echo "You found 1 Block";
}
if (strpos($word, "Blocks")){
echo "You found many Blocks";
}
The problem here is both if are true.. and i need to find only if is the same word..
As Jay Blanchard says you need to do it with regex in following way:--
$word = "Many Blocks";
if ( preg_match("~\bBlocks\b~",$word) )
echo "matched";
else
echo "no match";
Your code would work with an offset on the second search and a few other changes.
$result = 'You found no blocks';
$position = strpos($word, "Block");
if ($position !== false){
$result = "You found 1 Block";
if (strpos($word, "Blocks",$position + 1)){
$result = "You found many Blocks";
}
}
echo $result;
by using the strpos() offset you can keep looping through until the word is no longer found.
$found = 0;
$offset = 0;
while(true){
$position = strpos($word,'Block',$offset );
if ($position === false){break;}
$found++;
$offset = $position + 1; // set offset just beyond the current found word
}
echo "Found: $found";
or
This one the code is simple but is slower:
preg_match_all('/Blocks/',$word,$matches);
$found = count($matches[1]);
You can do it with regex like this:
if(preg_match("/Block(\s|$|\.|\,)/", $string))
This looks for the word "Block" followed by space or dot or comma or end of string.
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I tried to make a simple name generator. Help me to identify why it's not working. I think it's because of mt_rand function. Sorry if question seems banal or irrelevant, I'm first time here and new to programming. Here's the code:
<?php
echo 'Ovo je moja verzija Polumenta generatora';
$prvo = 'bcdfghtnjpknmlrjdzdjs';
$drugo = 'aeiou';
$trece = 'bcdfghtnjpknmlrjsdzdj';
$cetvrto = 'uo';
$prvos = mt_rand($prvo[0],$prvo[17]);
$drugos = mt_rand($drugo[0],$drugo[4]);
$treces = mt_rand($trece[0],$trece[17]);
$cetvrtos = mt_rand($cetvrto[0],$cetvrto[1]);
echo $prvos.$drugos.$treces.$cetvrtos.' Polumenta'
?>
mt_rand takes integers as arguments and returns an integer. You are trying to pass it characters and return characters. You should do something like:
<?php
echo 'Ovo je moja verzija Polumenta generatora';
$prvo = 'bcdfghtnjpknmlrjdzdjs';
$drugo = 'aeiou';
$trece = 'bcdfghtnjpknmlrjsdzdj';
$cetvrto = 'uo';
$prvos = $prvo[mt_rand(0,strlen($prvo) - 1)];
$drugos = $drugo[mt_rand(0,strlen($drugo) - 1)];
$treces = $trece[mt_rand(0,strlen($trece) - 1)];
$cetvrtos = $cetvrto[mt_rand(0,strlen($cetvrto) - 1)];
echo $prvos.$drugos.$treces.$cetvrtos.' Polumenta'
?>
You can make it in another way, using arrays and rand() function.
$chrs[0] = str_split('bcdfghtnjpknmlrjdzdjs'); // array of consonants
$chrs[1] = str_split('aeiou'); // array of vowels
$length = 8; // nick name length
Than generate random sequence of chars any length
for($i = 0; $i < $length; $i++)
{
$v_or_c = rand(0,1);
if($v_or_c)
{
$nick_name .= $chrs[$v_or_c][rand(0, sizeof($chrs[$v_or_c]))];
}
else
{
$nick_name .= $chrs[$v_or_c][rand(0, sizeof($chrs[$v_or_c]))];
}
}
echo ucfirst($nick_name); // ucfirst - to upper case first letter
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How is it possible to choose a specific word/s or number/s from a link with php. I have the following urls where I want to choose only the rss number. Have been trying to use preg_match and preg_replace to no avail unfortunately.
<link><![CDATA[http://www.domain.com/league/news/newsid=21898248704.html?rss=2148704+hakska+iwumao+oioqp+badge+water]]></link>
<link><![CDATA[http://www.domain.com/rugby/video/ball/index.html?rss=2133483+water+none+respective+all+sat's+report]]></link>
As you can see the urls are not the same but both have rss=XXXXXX. My aim is to insert the number after "rss=" into the database.
Would appreciate if anyone can give me a tip of how to do this.
Like this ?
<?php
$link = '<link><![CDATA[http://www.domain.com/league/news/newsid=21898248704.html?rss=2148704+hakska+iwumao+oioqp+badge+water]]></link>';
preg_match('/rss=([0-9]+)/', $link, $matches);
echo $matches[1]; // returns 2148704
?>
$url = "http://www.example.com/foo.php?rss=9001+asdf";
$res = "";
$i = 0;
if (($i = strpos($url, 'rss=')) !== false) {
$res = substr($url, $i + 4); // +4 because the length of 'rss=' is 4, we just want the value
if (($i = strpos($res, '+')) !== false) { // $res contains +, cut that off
$res = substr($res, 0, $i);
}
// res has a value
echo $res;
} else {
// res has no value
}
Example
$link = '';
preg_match('/rss=([0-9]+)/', $link, $matches);
echo $matches[1]; // returns 2148704
Worked fine. Thanks a lot Phantom!
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is there any way to sum/substrate character in php?
For example if
$var1 = 'a';
$var2 = 'b';
$var3 = 'a';
$calculation = $var1 - $var2 + $var3;
echo $calculation;
I want the output as 2a-b
Just like we did in high school algebra?
I wrote a simple function to make something like what you want.
It's just an example, you will have to improve it a lot if you really want to use it, but is a good start.
Limitations:
Only works with letters (Won't work propely if you add numbers, you will have to add that functionaliy).
ALL the letters must have their plus or minus.
You must use spaces before a plus or minus.
This is definitely not the best way to do it, as I said you have to improve it. I wrote it fast but I tested it a bit.
<?
function calc($str){
$data = preg_split("/ /", $str);
$used = Array();
$buffer = "";
foreach ($data as $pos=>$letter){
foreach ($data as $pos2=>$letter2){
if ($letter[1] == $letter2[1] && !in_array($pos, $used) && !in_array($pos2, $used) && $pos != $pos2){
$first = $letter[0] == '+' ? 1 : -1;
$second = $letter2[0] == '+' ? 1 : -1;
$buffer .= ($first+$second).$letter[1];
$used[count($used)] = $pos;
$used[count($used)] = $pos2;
}
}
}
foreach ($data as $pos=>$letter){
if (!in_array($pos, $used)){
$buffer .= $letter;
}
}
return $buffer;
}
echo calc("+a -b +a");
?>
Output:
2a-b