I need to check for MULTI occurances

I need to check for multi occurances in a string.
At the moment I am checking for a single occurance using strpos()
e.g.
$pos = strpos($notice, "abc");
if ($pos !== false) {
Dissallow notice
}

I now want to look for "abc" and "def" and "ghi"
and then dissallow notice.

Can anybody help me with the code for this.
Or do I need to use the same code again for each occurance to look for.

Thanks

 

You could use an else if clause, or you could do three variables with a an 'or' clause, or you could repeat the code three times.

1-----------------
if(strpos($notice, "abc") !== false){
Dissallow notice
} elseif(strpos($notice, "def") !== false){
Dissallow notice
} elseif(strpos($notice, "ghi") !== false){
Dissallow notice
}else {
Allow notice
}

2----------------------
$pos1 = strpos($notice, "abc");
$pos2 = strpos($notice, "def");
$pos3 = strpos($notice, "ghi");
if ($pos1 !== false) or ($pos2 !== false) or ($pos3 !== false) {
Dissallow notice
}

3----------------
$pos = strpos($notice, "abc");
if ($pos !== false) {
Dissallow notice
}
$pos = strpos($notice, "def");
if ($pos !== false) {
Dissallow notice
}
$pos = strpos($notice, "ghi");
if ($pos !== false) {
Dissallow notice
}

 

preg_match_all returns the number of occurences found in a string, I'd make a simple function using that instead of all that messing around ....

 

jc's looking for the occurence of multiple patterns, not multiple occurences of the same pattern.

 

which is why I suggested using regex and not static text, think it over .....

 

Many thanks to the people who replied.
I used DRUIDELDER's suggestion. The only problem that I found was that I had to slightly modify this line:
if ($pos1 !== false) or ($pos2 !== false) or ($pos3 !== false)
to:
if (($pos1 !== false) or ($pos2 !== false) or ($pos3 !== false))

Thanks also to krakjoe for his suggestion.
I couldn't use his suggestion because I am a novice and I didn't understand regex or preg_match_all


Being a novice I needed the example that DRUIDELDER gave me, but I am very appreciative for all suggestions.

Does anybody know how to do the same thing in PERL ???

 

You're welcome.