$re = '~^\s*\K\w+~m';
$str = '{
questions: [
{
name: "name",
type: "text",
title: "Please enter your name:",
placeHolder: "Jon Snow",
isRequired: true
}, {
name: "birthdate",
type: "text",
inputType: "date",
title: "Your birthdate:",
isRequired: true
}, {
name: "color",
type: "text",
inputType: "color",
title: "Your favorite color:"
}, {
name: "email",
type: "text",
inputType: "email",
title: "Your e-mail:",
placeHolder: "jon.snow@nightwatch.org",
isRequired: true,
validators: [
{
type: "email"
}
]
}
]
}';
$subst = "\"\0\"";
$result = preg_replace($re, $subst, $str);
echo "The result of the substitution is ".$result;
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for PHP, please visit: http://php.net/manual/en/ref.pcre.php