Question

How to extract the first letter from each word in a string with PHP

Answer 1

$s = 'php programming language';

$words = explode(" ", $s);
$fl = "";

foreach ($words as $w) 
  $fl .= $w[0] . " ";

echo $fl;
 
/*
run:
  
p p l 
   
*/

 

70+ SQL courses for beginners and professionals

Answer 2

$s = 'php programming language';

$words = explode(" ", $s);
$fl = "";

foreach ($words as $w) 
  $fl .= strtoupper($w[0]) . " ";

echo $fl;
 
/*
run:
  
P P L 
   
*/

 

70+ SQL courses for beginners and professionals

Answer 3

$s = 'php programming language';

$words = preg_split("/\s+/", $s);

$fl = "";

foreach ($words as $w) 
  $fl .= $w[0] . " ";

echo $fl;
 
/*
run:
  
P P L 
   
*/

 

70+ SQL courses for beginners and professionals

Answer 4

$s = 'php programming language';

preg_match_all("/[A-Z]/", ucwords(strtolower($s)), $fl);

foreach ($fl[0] as $s) 
    echo $s . " ";

 
/*
run:
  
P P L 
   
*/

 

70+ SQL courses for beginners and professionals