How to splitt a string to an array with keys and values using php

Question

I have string and I want to splitt it to array and remove a specific part and then convert it back to a string .

$string = "width,100;height,8600;block,700;narrow,1;"

I want to search block in this string and remove it with its value "block,700;" and get the string as "width,100;height,8600;narrow,1;"

below is my code php which i tried.Please advice me

                $outerARR = explode(";", $string);
                $arr = array();
                foreach ($outerARR as $arrvalue) {
                    $innerarr = explode(",", $arrvalue);
                    $arr[] = $innerarr;
                }
                for ($i = 0; $i < count($arr); $i++) {
                    if (in_array($arr, 'block')) {
                      unset($arr[$i]);

                    }
                }

Please note that "block" in aboive string will not always contain and the value may differ. So I can't use string replace . please advice

@Fky :"block: wil not always include in the string , and the value may differ. please advice. — hansi silva
– hansi silva, Commented Mar 22, 2017 at 16:13

mehulmpt · Accepted Answer · 2017-03-22 16:16:03Z

1

You essentially want to replace part of your string:

$string = "width,100;height,8600;block,700;narrow,1;";
$regex = '#(block,(.*?);)#';
$result = preg_replace($regex, '', $string);
echo $result;

edited Mar 22, 2017 at 16:16

answered Mar 22, 2017 at 16:09

mehulmpt

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1 Comment

hansi silva Over a year ago

"block: wil not always include in string , and the value may differ. how to proceed

ilpaolino · Accepted Answer · 2017-03-22 16:16:45Z

1

Try this:

$string = "width,100;height,8600;block,700;narrow,1;"
$outerARR = explode(";", $string);
$arr = array();
foreach ($outerARR as $arrvalue) {
    $innerarr = explode(",", $arrvalue);
    $arr[$innerarr[0]] = $innerarr[1];
}
if (array_key_exists('block', $arr)) {
    unset($arr['block']);
}

answered Mar 22, 2017 at 16:16

ilpaolino

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