PHP Str replace function with special html characters

Question

My script extract span with it's attributes. I want to replace span with attributes with something else. I am using following piece of code, maybe cause of special characters it doesn't work.

    $tag=strtolower(str_replace("'<<span_id="ctl00_cphpagecontant_label6"><b>'","B",$tag));

So you want to replace the exact string '<<span_id="ctl00_cphpagecontant_label6">' with B referenced as $tag? — jensgram
– jensgram, Commented Dec 24, 2011 at 8:16
In that case the above should work. Can you paste an example of $tag's value before attempting the above? My gut-feeling is that the string is not exactly what you want to replace (<<, contant and wrapped in 's all seem a little weird). — jensgram
– jensgram, Commented Dec 24, 2011 at 8:17
@jensgram I think the value is not in $tag <<span_id="ctl00_cphpagecontant_lalel1">job_categories>Consultancy</<span_id="ctl00_cphpagecontant_lalel1">job_categories> — Maihan Nijat
– Maihan Nijat, Commented Dec 24, 2011 at 8:22
@jensgram I tried all but it was not working, finally I break the string into pieces and replace each separate. now trying to replace this <=""> with nothing. $tag=strtolower(str_replace("'<=\"\">'",""), $tag); — Maihan Nijat
– Maihan Nijat, Commented Dec 24, 2011 at 9:17

Community · Accepted Answer · 2020-06-20 09:12:55Z

3

Nesting quotes, ya' need to escape 'em mate!

If you have a string wrapped in "" and would like this string to contain a literal " you will need some sort of method to say that "hey, I want this character here - but it's not the end of the string", that's where escaping comes in.

By prepending your character with a backslash \ you tell the PHP interpreter just that; this character is a part of the string, it's not used to denote the end of it.

$tag=strtolower (
  str_replace ("'<<span_id=\"ctl00_cphpagecontant_label6\"><b>'","B",$tag)
);

Note: Does the string you'd like to replace start and end with '? Otherwise those characters should be removed from the string.

edited Jun 20, 2020 at 9:12

CommunityBot

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answered Dec 24, 2011 at 8:20

Filip Roséen

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1 Comment

Maihan Nijat Over a year ago

I tried all but it was not working, finally I break the string into pieces and replace each separate. now trying to replace this <=""> with nothing. $tag=strtolower(str_replace("'<=\"\">'",""), $tag);

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PHP Str replace function with special html characters

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Nesting quotes, ya' need to escape 'em mate!

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Nesting quotes, ya' need to escape 'em mate!

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