Comptage du nombre de caractères X

Question

J'expérimente quelque chose où explode() échoue, donc je veux essayer autre chose. Si j'ai une chaîne, comment puis-je compter le nombre de caractères dans ce qui disons un comma comme dans ,

Answer 1

Essayez substr_count():

substr_count($text, ','); 

Answer 2

Vous pouvez utiliser count_chars

Exemple de Manuel PHP:

$data = "Two Ts and one F."; 
foreach (count_chars($data, 1) as $i => $val) { 
    echo "There were $val instance(s) of \"" , chr($i) , "\" in the string.\n"; 
} 

sortie (codepad):

There were 4 instance(s) of " " in the string. 
There were 1 instance(s) of "." in the string. 
There were 1 instance(s) of "F" in the string. 
There were 2 instance(s) of "T" in the string. 
There were 1 instance(s) of "a" in the string. 
There were 1 instance(s) of "d" in the string. 
There were 1 instance(s) of "e" in the string. 
There were 2 instance(s) of "n" in the string. 
There were 2 instance(s) of "o" in the string. 
There were 1 instance(s) of "s" in the string. 
There were 1 instance(s) of "w" in the string.