php - Change file content using RegEx -


im trying change file content nothing happening. there 1 word in .csv file - moonwalk. help, please? 

$fn = file_get_contents("test.csv"); $pattern = '!moon!iu'; $replacement = 'lol'; preg_replace($pattern, $replacement, $fn); file_put_contents('fixed.csv', $fn); chmod("fixed.csv", 0664);

the preg_replace function doesn't work in-place:

return values
preg_replace() returns array if subject parameter array, or string otherwise.
if matches found, new subject returned, otherwise subject returned unchanged or null if error occurred.

the result of replace returned, if need value should take if result of function:

$fn = preg_replace($pattern, $replacement, $fn);

Comments

Post a Comment

Popular posts from this blog

angular - DownloadURL return null in below code -

when change file updated in firebase storage when try downloadurl show null. filechange(event: any) { const imagefolder: string = this.employee.id; const filelist: filelist = event.target.files; const file: file = filelist[0]; const storageref = firebase.storage().ref().child(`${imagefolder}/profile.jpg`).put(file); console.log(storageref.snapshot.downloadurl); } the put() asynchronous. if want url after file uploaded have this: firebase.storage().ref().child(`${imagefolder}/profile.jpg`).put(file).then((snapshot) => { storageref = snapshot.downloadurl: console.log(snapshot.downloadurl); });
Read more

python 2.7 - Given three nested dictionaries, sort the top two nested dictionaries from a value in the innermost dictionary? -

i trying sort both outermost dictionary , "middle" dictionary value of "cal" (highest first) in innermost dictionary. accomplish using ordereddict. given example below, trying accomplish: for foods, order food subtypes highest calorie content (i.e - pizza, pesto should appear first because has higher calories when compared cheese. order foods highest calorie content (i.e - pizza should appear first has subtype more calories other food) i have following data: foods = { "apple": { "red": { "cal": "1", "taste": "4" }, "green": { "cal": "2", "taste": "6" } }, "pizza": { "pesto": { "cal": "200", "taste": "9" }, "cheese": { ...
Read more